19th Century: LC: The sea trade in Kingsport declines, and fishing becomes its major industry. However, its economy declines over the next century.
Early 19th Century: LC: A "Clergyman X" publishes a heavily expurgated pamphlet in English, describing the contents of De Vermis Mysteriis's most famous chapter, "Saracenic Rituals."
- The sea trade in Arkham fails, but now mills spring up on the banks of the Miskatonic River.
- Most of Ithaqua's cults in the northern regions of Earth have died out by this time.
- A necromantic cult exists among the people of Temphill. This cult later collapses.
- The original version of the Revelations of Glaaki is said to have been written by this time.
1800: LC: James Phipps, an "unorthodox" scientist, moves into an empty house on Riverside Alley in the town of Clotton on the Ton River (a tributary of the Severn River).
1801: LC: By this year, Alijah Billington lives on the family estate established by his ancestor in colonial times near Dunwich.
- The expurgated second edition of Thaumaturgical Prodigies in the New-English Canaan is released. Alijah Billington protests his ancestor Robert Billington's unfavorable portrayal in Prodigies, and engages in a brief and inconclusive dispute over the work with its author.
- The old grist mill in Dunwich is burnt down to almost nothing.
1802: LC: Arkham industrialist Elihu Beckford founds the town of Aylesbury on the site of the former village of Broton. He also has the Aylesbury Pike built.
1804: LC: Ezra Whateley, descendant of Jacob, demands that George Whateley return a piece of jewelery found by a farmer on Whateley property. George refuses, and Ezra swears revenge.
1805: LC: Reverend Ward Phillips becomes the head librarian of Miskatonic University. According to some, Arkham College became Miskatonic University in this year.
- Spring: James Phipps leaves Clotton one night and does not return for some time. ("The Horror from the Bridge," Campbell)
- Early November: James Phipps returns to Clotton, having spent the past several months in Temphill. He brings with him his new wife, whom he met in that town.
1806: LC: A larger, more modern sawmill is built by George Whateley, and promises to bring economic prosperity to Dunwich. Four boys die in a tragic accident on the day of its opening however, an act for which Avern Whateley of the hill Whateleys is blamed. Avern is hung by an angry mob. The tragedy causes George Whateley to suffer a mental collapse, and while his family tries to run the sawmill, people are reluctant to work there.
- November: Lionel Phipps is born to Mr. and Mrs. James Phipps.
1807: LC: A number of bizarre disappearances and murders, ending with the disappearance of Jonathan Bishop, occur throughout the area near Kingsport, Dunwich and Arkham.
c.1808: LC: After some strange happenings and conflicts with certain locals, Alijah Billington leaves with his son Laban and moves to England. Reverend Ward Phillips, perhaps in regret, tries to acquire and destroy all copies of Thaumaturgical Prodigies afterward.
1808: LC: The new sawmill in Dunwich finally closes. This begins the downward spiral of Dunwich's economy.
- Tracer Bishop dies, and leaves his home to the community of Dunwich. The old town meeting house is abandoned and replaced by Bishop's home, and the town records are moved there as well.
1809: LC: An edition of De Vermis Mysteriis is published in Prague.
- Remnants of Lost Empires, by Otto Dostmann, is published in Berlin by Der Drachenhaus Press.
- Benevolent Pickman donates the first of several legacies from the Pickman family to Miskatonic University's library, on the condition that the funds be used to purchase occult books. Benevolent's own library is later donated to Miskatonic after his death.
1811: LC: A mysterious foreigner leaves a copy of the Latin Necronomicon at the Bibliotheque Nationale. He is found poisoned the next day in his apartment.
Between 1812 and 1814: LC: During the War of 1812, the sea captains of Innsmouth turn privateer and attack the British fleet. Half of Innsmouth's sailors are killed, and the town loses its previous prosperity. After this point, Innsmouth's economy is dependent on the mills built on the banks of the Manuxet and, later, Captain Obed Marsh's trade in the Indies.
1814: LC: Friedrich von Junzt enters the University of Berlin.
- Father Jacque DeCasque disappears.
1815: LC: Gottfried Mülder and Friedrich von Junzt meet, probably at the University of Berlin. They become good friends.
- Sir Robert Jermyn, son of Philip Jermyn, marries the daughter of the Viscount Brightholme. They have three children, but two of them are deformed and never publicly seen.
1818: LC: Gottfried Mülder and Friedrich von Junzt begin their travels through Asia.
- The government destroys burrows around some of the more ancient homes in Arkham, as well as unearthing a particular graveyard, following the arrest of smuggler Jonathan Dark.
1819: LC: Famous architect Charles Bulfinch is hired to help design the western wing of the Cabot Museum of Archaeology, which is dedicated to mummies.
- After Gottfried Mülder and Friedrich von Junzt return from Asia, they grow apart.
- Friedrich von Junzt writes his doctoral thesis, "The Origin and Influence of Semantic Magical Texts." After graduation, he goes to the University of Wurttemberg to teach.
1820: LC: Innsmouth native Captain Gardner Averill learns a dangerous demon-summoning ritual from a Burmese sage, and records it in his captain's log.
- Captain Obed Marsh begins his business in the Pacific trade.
- A whaler named Scoresby observes strange mirages in the Arctic, which he later draws.
1821: LC: Charles Leggert translates an English version of De Vermis Mysteriis (Mysteries of the Worm) from a German translation. Only a few copies of this version were published.
1822: LC: According to rumor, Lionel Phipps begins to be educated by his father in the ways of his science.
1823: LC: Friedrich von Junzt leaves his teaching post and travels throughout Europe, the Americas, and Africa, infiltrating and investigating numerous secret cults, and learning of their practices.
- Late in the year, Lionel Phipps' education is rumored to be complete, and he and his father undertake a strange series of excavations near their home.
- Obed Marsh meets the Kanakys, and begins trading with them for their strange gold jewelery.
1824: LC: The Hall School is founded in Kingsport. Many papers belonging to Eben Hall are stored here.
Mid-19th Century: LC: Captain Obed Marsh explores Devil's Reef. Reputedly, he is searching for pirate treasure.
1825: LC: Early in the year, officials searching for a fugitive in Clotton search the Phipps home. One of their number has a disturbing experience in the cellar.
- Alexis Ladeau meets Friedrich von Junzt in Paris. The two become friends.
c.1826: LC: A Frenchman named Echard, accompanied by a few American Indians of the Huron tribe, goes on an expedition through some of the great forests of Canada. He later writes a manuscript detailing this journey, including mentions of ancient gods and a statue of a creature named "All-Eye."
1826: LC: The ruins of Nan-Matal and Metalanim, located on the island of Ponape, are discovered by an Irish sailor named O'Connell or O'Connor.
1827: LC: Alexis Ladeau and Friedrich von Junzt travel to America, settling in New York for a time.
- Friedrich von Junzt publishes his short monograph Les Vampires.
1828: LC: Friedrich von Junzt publishes another short monograph, Les Lupines.
c.1829: LC: The being which embodies the worshippers of Nodens arrives after another time-jump, and takes on the identity of Dr. Marc Souvate. He meets Armand Saadi, who becomes his apprentice and helps him adjust to his new time.
1829: LC: Early in the year, Alexis Ladeau catches malaria while he and Friedrich von Junzt explore the Florida Everglades. Ladeau is forced to return home.
- The Kingsport Chronicle newspaper is founded.
1831: LC: Zadok Allen of Innsmouth is born.
- Captain William Henry Parker of Innsmouth meets Lang-Fu, a Chinese sage, who entrusts him with a document meant for Captain Obed Marsh. The document, an English translation of the R'lyeh Text, terrifies Parker so much that he hides it in his library.
1832: LC: Abednego Mesach Akeley is born in Windham County, Vermont.
Mid-1830s: LC: Friedrich von Junzt contacts Gottfried Mülder, now operating a publishing house in Dusseldorf. Von Junzt makes arrangements with him to publish his work Unaussprechlichen Kulten.
1833: LC: A second Dunwich is founded in the Flint Hills of Kansas, populated by immigrants from the original Dunwich. They are led by Reverend Ezekiel o'Sullivan, who was inspired by a vision of a golden city to the west.
- The Innsmouth Courier newspaper is founded. It is edited by "the fiery John Lawrence."
1834: May 3: LC: George Gammell Angell is born.
- TR: A group of sailors on the HMS Beagle discover four of the (Antarctican) Meteorite Artifacts (used millions of years ago by the Polynesians) in a cavern while exploring the coast of Antarctica.
1835: LC: Friedrich von Junzt returns to his family manor, and calls for Alexis Ladeau. The two live together for the next year while von Junzt works on his magnum opus.
1836: LC: Friedrich von Junzt completes Unaussprechlichen Kulten. The day after he finishes it, von Junzt takes a train to St. Petersburg. This is the last time Alexis Ladeau sees him alive.
- Oliver Whateley of the hill Whateleys leaves Dunwich and becomes a missionary in the American West.
Between 1837 and 1843: LC: Missionary Oliver Whateley works among the Hotethk tribe in California.
1837: LC: Gottfried Mülder receives Unaussprechlichen Kulten from Friedrich von Junzt- however, he chooses not to publish it at this time for unknown reasons. Mülder does contract von Junzt to write a second book, which he agrees to do.
1838: LC: Obed Marsh's trading partners in the Pacific are killed by other local tribes, ending Marsh's source of revenue. As a result, Innsmouth's economy enters a depression. Soon after, Obed Marsh founds the Esoteric Order of Dagon, which becomes very popular.
1839: LC: Folklorist Eli Davenport's monograph Legends of New England is released.
- The first printing of Unaussprechlichen Kulten is released, with an introduction by Gottfried Mülder himself.
1840: LC: Following his return from a six-month visit to Mongolia, Friedrich von Junzt is found dead by Alexis Ladeau and local authorities in his hotel room in Dusseldorf. Alexis takes a manuscript von Junzt had been working on, but after reassembling and reading it, he destroys it and slits his throat. (According to some, a few pages of this manuscript are buried with Ladeau.)
- In the scandal following the death of von Junzt, Gottfried Mülder's publishing house eventually goes bankrupt. Many who own Unaussprechlichen Kulten destroy their copies after learning of von Junzt's fate.
- Obed Marsh makes contact with the deep ones of Y'ha-nthlei, near Devil's Reef. They become part of the Esoteric Order of Dagon's rites, and also provide new gold to replace that of the Pacific islanders.
Between 1840 and 1846: LC: The Esoteric Order of Dagon runs every other church out of town, and becomes the sole religion of Innsmouth.
1841: LC: The branch rail line from Innsmouth to Rowley is built.
Between 1842 and 1860: LC: Several male members of the Bishop family are buried in sealed, alcohol-filled coffins, as per the instructions of Nyarlathotep (as the Black Man).
1842: LC: Douglas Averill, son of Gardner Averill, is killed by a follower of Obed Marsh. The follower is freed thanks to Marsh's influence, but the Averills use the Burmese demon-summoning spell. The creature that manifests is sent to horribly slay the offender. The Averill family is not bothered for quite some time afterwards.
- A crew of Kingsport fishermen are lost in Innsmouth waters, with only young Danny Troughton surviving. A storm is blamed, but there are rumors that the seamen were slain by Innsmouth natives guarding their fishing grounds.
- The nine-volume edition of the Revelations of Glaaki begins to be compiled at this time.
1843: LC: Professor Enoch Bowen, an occultist and archaeologist from Providence, Rhode Island, excavates the crypt of Nephren-Ka.
- A French translation of Unaussprechlichen Kulten, by the Jesuit Pierre Sansrire, is published in St. Malo. No copies of this version are known to survive to the modern day.
- Oliver Whateley leaves the Hotethk tribe. After his departure, the entire tribe vanishes.
1844: LC: May Professor Enoch Bowen ceases his excavations of Nephren-Ka's tomb upon finding the Shining Trapezohedron, and returns to Providence. Once there, he founds the Church of Starry Wisdom.
1845: LC: M.A.G. Bridewall, a disreputable bookseller, finds a copy of the French translation of Unaussprechlichen Kulten in a London store. He translates it (badly) into English, and has this rather flawed version published under the title Nameless Cults.
1846: LC: Obed Marsh takes an unseen wife, as do other members of the Esoteric Order of Dagon.
- Obed Marsh and some of his followers are arrested and jailed on suspicion of kidnapping and murder. Two weeks later, a "plague" strikes Innsmouth. Half of the townspeople die, including Courier editor John Lawrence and Selectman Leonard Mowry. The surviving population is placed firmly under the control of Obed Marsh and the Esoteric Order of Dagon. Among the deceased is Zadok Allen's father. He takes it badly.
- Alexis Ladeau's book Reminiscences of Friedrich Wilheim von Junzt is published by Bridewall.
- Disappearances begin in Providence that rumors link to the Starry Wisdom Church.
1847: LC: Gottfried Mülder's book The Secret Mysteries of Asia, with a Commentary on the "Ghorl Nigral" is printed in Liepzig. Its content was derived from conversations Mülder had with Friedrich von Junzt during their Asian travels, which he recalled under hypnosis. Most copies are seized and destroyed by the German government.
1848: LC: According to rumor, Friedrich von Junzt's translation of the Greek Necronomicon, Das Verichteraraberbuch, is published posthumously in this year.
- Randolph Delapore, cousin of Thomas Delapore, becomes a voodoo priest after returning from the Mexican War.
- The American Freemasons begin constructing the Obelisk Temple of Ba'al, renaming it the Washington Monument, by transporting its ancient stones to the new nation.
1849: LC: Nevil Jermyn, second son of Sir Robert, elopes with a "vulgar dancer."
1850s: LC: Leander Alwyn leaves Innsmouth and builds a mansion in the wilds of Wisconsin.
1850: LC: Nevil Jermyn returns to his family, a widower with an infant son named Alfred.
- Gene Mirandola, nephew of Armand Saadi, is born.
- Graf von Könnenberg writes the monograph Uralte Schrecken.
1852: LC: October 19 Explorer Samuel Seaton provides Sir Robert Jermyn with certain papers and anecdotes of the Congo, which drive Jermyn to madness. He strangles the explorer and kills all his children, before being restrained. Robert's grandson, Alfred, is the only survivor of the family.
1854: LC: Sir Robert Jermyn dies of apoplexy in his confinement, after repeated suicide attempts.
c.1855: LC: Thomas Delapore (later Thomas de la Poer) is born in Virginia
1855: LC: Henry Armitage is born.
- Future occultist Alonzo Hasbrouck Typer is born.
1858: LC: According to one source, Gottfried Mülder publishes a German translation of the Ghorl Nigral.
1859: LC: Catskills native Joe Slater begins to exhibit bizarre behavioral patterns contrary to his normal personality.
1860: LC: A young priest breaks up the Cyaegha-worshipping cult in Freihausgarten.
- Professor William Channing Webb encounters a tribe of Cthulhu-worshipping Eskimos along the western coast of Greenland.
1861: LC: Miskatonic Liberal Seminary (or Miskatonic College) merges with Elder Faith Seminary to become Miskatonic University.
Between 1863 and 1864: LC: Union conscription agents are sent to investigate Innsmouth's failure to make draft quotas. After seeing the degeneracy of the town and widespread deformities among its people, they leave it unmolested. Only natives are aware that these deformities come from breeding with the deep ones.
1863: LC: At this point, the Starry Wisdom Cult in Providence had over 200 members. Presumably, Dr. Raymond Flagg had taken over the cult by this time, following Bowen's death.
- Sawyer Whateley joins the Union army, and distinguishes himself in the course of two battles.
- Dr. Jean-Francois Charriere investigates Innsmouth.
1864: LC: Edward Hutchinson's work The Opener of the Way is published by Buzrael Press of Liverpool.
- Laban Shrewsbury is born in Wisconsin.
- The whaling ship Nebuchadnezzar vanishes off the coast of Ponape, around the same time as the appearance of a bank of strange low-lying fog.
c.1865: LC: Erich Zann, future musician, is born.
1865: lC: Professor Enoch Bowen dies.
- An escaped member of the cult of Glaaki leaks the manuscript of the eleven-volume Revelations of Glaaki, which details the practices of that cult. It is published, but certain material is not included, reducing the Revelations to nine volumes. The book becomes extremely rare, as the cultists of Glaaki make a point to buy as many copies as they can.
- E.A. Hitchcock's Remarks upon Alchemy is printed, which makes mention of the "now unattainable secrets of the Aklo tablets."
- By the end of the American Civil War, a cult known as the Esoteric Order of Dagon (apparently related to the Innsmouth version by name only) is well established in and around New Orleans.
- The city of Kimbrough is settled in Texas, soon after the end of the American Civil War, by settlers from Georgia. Their initial difficulties are solved by an alliance with the local Comanche.
Between 1865 and 1870: LC: The cult of Glaaki around its lake disappears. The lake is drained to search for the missing persons, but neither they nor any trace of Glaaki or its meteor are found.
1866: LC: The federal government closes down Innsmouth's Custom House and rescinds the town's status as a port of entry.
c.1868: LC: Josiah Alwyn, nephew of Leander Alwyn, is born.
1868: LC: The Reverend Samuel Shadrach Solomon Akeley, father of Abednego Akeley, dies. Abednego succeeds him as reverend, but begins preaching the doctrines of the Starry Wisdom cult to his flock after travels through southern New England.
- The city of the "Fishers from Outside" is found by its first explorer.
1869: LC: The "great immigrant panic" in Arkham leads to the destruction of Cyrus Hook's mansion.
- A group of Irish vandalize the Starry Wisdom Church, apparently in retaliation for their perceived involvement in kidnapping a fellow.
c.1870: LC: Ambrose Dewart, descendant of Alijah Billington, is born.
- Basil Elton, a traveller of the Dreamlands, is born.
1870: LC: Alfred Jermyn joins "a band of music-hall performers."
1871: LC: Abednego Akeley dies, leaving behind a son, Henry Wentworth Akeley, conceived hours before his death. Abednego's congregation moves to Providence.
c.1872: LC: Septimus Bishop, later a reputed warlock, is born.
- The entire van der Heyl household- family and servants all- disappear, leaving the house empty.
1872: LC: An Old French translation of Sorcerie de Demonologie, by the Comte Jean-Louis de Hammais, is printed.
- Oakley Press publishes a version of True Magik.
- The old John Bishop house is abandoned by his descendants.
1872-1993: Indiana Jones (comics, books, and movies) timeline.
1873: LC: Randolph Carter is born.
- An Innsmouth man pawns a piece of jewelery from his hometown, shortly before he is killed in a brawl.
1874: March 24: LC: Erich Weiss, later known as Harry Houdini, is born.
Between the Late 19th Century and the Early 20th Century: LC: Two enciphered Tibetan copies of the Seven Cryptical Books of Hsan are sent out of Tibet for safekeeping. One eventually returns to the Dalai Lama, and the other is acquired by Miskatonic University.
Late 19th Century: LC: Zebulon Pharr, an occultist and anthropologist from the West Coast, is active during this time.
- Missionaries in the Sepik River area in New Guinea begin struggling against a native cult devoted to "Zhmog-yaa."
- Henry Armitage, recently hired as a librarian of the Miskatonic University Library, acquires a copy of the Necronomicon from Providence businessman Whipple Phillips, H.P. Lovecraft's grandfather. Coincidentally, this happens to be the same copy once used by Joseph Curwen.
- An English translation of the Seven Cryptical Books of Hsan is supposedly smuggled out of China at this time.
c.1875: LC: William Dyer, future Professor of Geology at Miskatonic University, is born.
- The Sanbourne Institute for Pacific Studies is founded in California by Philip Sanbourne.
1875: LC: Aleister Crowley is born.
- Caleb Hutchins makes an attempt to blow up the stone circle on Hutchins Mountain, near Dunwich. His plans are ruined by one of the hill Whateleys, and Hutchins goes insane and is locked away by his family. The Believers repair the damaged stones.
1876: LC: Morris Wheaton, an amateur archaeologist from Kingsport, visits an allegedly haunted Indian mound near the Miskatonic River and west of Arkham.
c.1877: LC: Barnabas Marsh, grandson of Obed Marsh, takes an Ipswich woman as his wife.
1877: May: LC: The Starry Wisdom cult in Providence is disbanded after threats from the locals. The cultists leave town by year's end.
1878: LC: Obed Marsh dies. His family continues to run the Esoteric Order of Dagon in his stead, and retain control of Innsmouth.
- May 11: The crew of the freighter Eridanus acquires a strange mummy on an unknown Pacific island.
- October 31: A Cthulhu cult located at Satan's Ledge near Arkham is scattered when a "cataclysm of God" destroys their settlement.
1879: LC Seneca Lapham, future Professor of Anthropology at Miskatonic University, graduates from that same institution.
- The Cabot Museum of Archaeology acquires the mummy found by the Eridanus.
- Satan and His Works in Latter-Day New England is published privately by Arkham native Thomas Hazard Clarke, in which he discusses the Satan's Ledge cult.
- November: The Cabot Museum puts the Pacific mummy on display.
Between 1880 and 1890: LC: A Starry Wisdom cult flourishes in Yorkshire, England.
c.1880: LC: Nathaniel Corey begins his practice in psychoanalysis.
- The homes near Glaaki's lake are placed on sale again. They are named as the community of Lakeside Terrace.
- Ghost stories centering around the former Starry Wisdom Church begin around this time. A Yorkshire branch of the cult arises, possibly founded by Dr. Raymond Flagg.
1880s: LC: Charles Clarendon, an aspiring doctor, goes on journeys across the world. Along the way, he visits U-tsang in Tibet (where he acquires samples of black fever and a large retinue of servants) and the Tuareg people of the Sahara (where he is joined by his strange manservant Surama). Upon returning to his sister in New York City, he becomes a renowned physician.
1880: LC: A young Vienna scholar named von Boehnk becomes acquainted with John Grimlan. Due to Grimlan's apparent age at the time, von Boehnk later expresses surprise that Grimlan still lived in 1930.
- Miskatonic's world-renowned medical school opens.
1881: LC: Henry Armitage and Harold Copeland graduate from Miskatonic University.
- Beatrice Arkham, last of her line, leaves Arkham House to the Brothers of St. Jerome.
1882: LC: The Eltdown Shards are found near Eltdown in southern England.
- The Dark Brotherhood, a group of occult experimenters, ceases meeting after one of its members is killed.
- Armand Saadi dies. Gene Mirandola disappears some time afterward, along with Dr. Marc Souvate.
- June: A strange meteor lands near Arkham, on the property of a farmer named Nahum Gardner. Henry Armitage later investigates, leading to his interest in acquiring the Necronomicon for the Miskatonic University library and studying it.
c.1883: LC: Future detective Thomas F. Malone is born.
Mid-1880s: LC: Phineas Hoag of Foxfield, Massachusetts encounters a being called Moroni, who gives him a copy of the Pnakotic Manuscripts and sets him on the path to a new religion. Hoag soon converts the whole of Foxfield, and over the next century, the town deliberately isolates itself from the rest of the world.
1883: LC: January/February: LC: Dr. Regis, a historian and scientist living near Goatswood Forest, investigates the Insects from Shaggai.
- November: Nahum Gardner is the last of his family to fall to the strange blight that devastated his land. The farm and the land around it is left abandoned.
- October 7: After spending a day in the "Snake Den" cave near his home, young Randolph Carter begins to show a talent for prophecy.
1884: LC: Richard Upton Pickman is born.
- An ape-like creature called "Jacko" is found in British Columbia. It is exhibited for a brief while, then escapes.
- TR: General Gordon is send to the Sudan to solve problems with the Mahdi.
- March 18: TR: Gordon’s troops lay siege to Khartoum.
1885: January 26: TR: Khartoum falls and Charles Gordon dies in the process. Five months later, the Mahdi dies, as well.
1886: LC: Alfred Jermyn leaves his wife and son Arthur to join the "Greatest Show on Earth." He later dies following a disastrous incident with a circus gorilla.
1887: LC: The Kimbrough family, with several other families, leaves the town that bears their name and moves to California. Allegedly, this is because they refused to convert to the local Comanche cult venerating Yidhra. The town of Kimbrough changes its name to Milando.
1888: LC: A flood sweeps through Arkham.
- A major storm hits Dunwich, destroying the old John Bishop house and damaging Osborn's General Store's steeple. A similar (or perhaps the same) storm destroys the roof and steeple of Kingsport's Congregational Church.
- A series of unexplained suicides in London end with the disappearance of one Mrs. Beaumont on July 25.
1889: LC: The Innsmouth-Rowley rail line is abandoned.
- August 10: An investigator for the Tlaxcala Mining Company has a terrifying encounter with a madman aboard a Mexico City-bound train.
- October 31: Walker and Audrey Davis fall prey to the curse of Yig.
Between 1890 and 1910: LC: Witch-hunter and supernatural investigator Baron Ernst Kant lives around the turn of the century. His son is Joachim Feery.
c.1890: LC: The Shields family, owners of the van der Heyl home, allow the property to decay from neglect.
1890s: LC: By this time, Aylesbury's formerly booming economy slumps and the village becomes one of many small manufacturing centers in New England.
- Harold Copeland travels extensively throughout Asia and Polynesia.
- Ezekiah Morton makes an English translation of Sorcerie de Demonologie.
- Dr. Alfred Clarendon is given the post of medical director at San Quentin Penitentiary in California. He is dismissed some time later, following a controversy surrounding his activities during an outbreak of black fever among the prisoners. Shortly after that, Clarendon dies in a fire, along with Surama.
1890: LC: Edward Pickman Derby is born.
- Noah Whateley's wife dies violently. The death is never investigated to any extent.
- By this time, the Yorkshire Starry Wisdom cult has fallen apart.
- August 20: Howard Phillips Lovecraft is born.
1891: LC: Halpin Chalmers is born.
- An unknown playwright (possibly named Castaigne) rediscovers the Marlowe sections of The King in Yellow, and completes the play. He attempts suicide thereafter.
- A young man named Heaton goes insane after exploring inside the "haunted" mound near Binger, Oklahoma, and dies eight years later.
- Nikola Tesla perfects the Tesla Coil and a cable-free power grid.
1892: LC: After entering the "mound region" of Oklahoma in pursuit of horse thieves, Marshal John Williams tells of a battle he saw between strange, ghostly warriors on horseback.
1893: LC: Reporter Edwin M. Lillibridge disappears after investigating the former church of the Starry Wisdom Cult.
- January 13: Clark Ashton Smith is born.
- February 24-25: "Globular lights" are observed by the H.M.S. Caroline between the ship and a mountain near the China sea.
- Between May and June: The entire population of Dunwich, Kansas, disappears over the space of a few months.
c.1894: LC: Future author Fred Carstairs is born in Partridgeville.
1894: LC: Alfred Delapore, son of Thomas Delapore, is born.
1895: LC: An edition of De Vermis Mysteriis is supposedly published by Starry Wisdom Press, but no copies have been found.
- The King in Yellow is published, and the play is quickly denounced by the governments and churches of Europe. The city of Paris even bans it. A more common English translation is produced afterward.
- Nathaniel Wingate Peaslee becomes an instructor in political economics at Miskatonic University.
- The book Analysis of the Manuscript of the Pnakotoi is compiled by Dr. J.T. Schwarzwalder.
- The Ordo Templi Orientis begins in Austria.
1896: LC: Nathaniel Wingate Peaslee marries Alice Keezar.
- November: A genealogist has a frightening encounter in an abandoned part of the Miskatonic Valley.
1897: LC: Erich Zann suffers an accident in Paris which causes him to lose his hearing. After this, he moves to Stuttgart, marries, and has at least one child.
- Randolph Carter foresees danger at a town named Belloy-en-Santerre.
1897-2011: FN: Fringe timeline.
1898: LC: Dr. Ambrose Dexter is born.
- Justin Geoffrey is born. [According to some accounts, he is born with the name John Ernest Tyler. This is probably confusion with his friend, John Tyler, who some believe was the writer of his poetry.]
- A second edition of Ladeau's Reminiscences of Friedrich Wilheim von Junzt is printed by Kielkopf.
- The only known copy of Monstres and Their Kynde is stolen from the British Museum.
- Robert Peaslee is born to Nathaniel and Alice Peaslee. Nathaniel Peaslee becomes an associate professor.
- A state surveyor dies of a heart attack when he tries to affix an identification marker to a "haunted" tree near Dunwich.
- James Phipps dies.
- March 12: A frozen body found near Vancouver is identified as Father Jacque DeCasque, who had vanished 84 years earlier.
- August: Passengers on a train near Trenton, Missouri, see a "globular light."
1899: LC: Alonzo Typer visits Easter Island.
- Future cult leader Edward Taylor is born in Brichester.
- Between January and February: Early in the year, Lionel Phipps visits the British Museum and consults some of their rarer texts. Soon afterward, Mrs. Phipps walks out of the Phipps house and is never seen again.
- March: Lionel Phipps begins a series of astronomical studies and other experiments, some in the outdoors.