"The only difference is that I can usually remember where I've read something in past history, but my future history I know without knowing how I know it."

— Edward Chalmers, "Edge of the Knife"

AE (AD) Date

1st Century AE (1943-2042 AD)

0
(1943)

Atomic Era begins with the first self-sustaining nuclear fission reaction. [HBP]
• ". . . the First Day of the Year Zero, when Enrico Fermi put the first [nuclear reactor] into operation. . . ." [JP]

2
(1945)

World War II ends; United Nations, precursor to the first Terran Federation, established. [HBP]
• ". . . Terran Federation is a tentative name for a proposed organization to take the place of the U.N. if that organization breaks up." [EK]

28
(1971)

Kilroy, first unmanned rocket, lands on Luna. [HBP]
• ". . . the first unmanned rocket . . . the Kilroy . . . launched some time in 1971." [EK]

c29
(c1972)

First base established on Luna. [HBP]
• "By that time, the Lunar Base would be completed and ready; the enemy missiles would be aimed primarily at the rocketports from which it was supplied." [EK]

30
(1973)

"The Edge of the Knife" (published May 1957).

c31
(c1974)

United Nations collapses "owning to disputes as to national sovereignty over, and militarization of, Luna." [HBP]
• ". . . the complete dissolution of the old U.N., already weakened by the crisis over the Eastern demands for the demilitarization and internationalization of the United States Lunar Base. . . ." [EK]

32
(1975)

World War III ("Thirty Days' War"). [HBP]
• ". . . the Southern Hemisphere managed to stay out of the Third and Fourth World Wars. . . ." [UU]
• ". . . back before the Thirty Days' War. . . ." [OL]
• ". . . the period immediately before the Thirty Days' War; . . . would lead, eventually, to the Thirty Days' War; . . . The Thirty Days' War would be the immediate result." [EK]
• ". . . burrow-cities, like the ones built in the Northern Hemisphere of Terra during the Third and Fourth World Wars. . . ." [FDP]
• ". . . nuclear bomb radiations on Terra during and after the Third and Fourth World Wars; . . . between the Second and Third World Wars." [FS]

First Terran Federation formed. [HBP]
• ". . . the complete dissolution of the old U.N. [would] necessitate the formation of the Terran Federation; . . . Terran Federation is a tentative name for a proposed organization to take the place of the U.N. if that organization breaks up." [EK]
• ". . . nuclear bomb radiations on Terra during and after the Third and Fourth World Wars, at the beginning of the First Federation." [FS]

?

Resettlement of Northern Hemisphere refugees in Antarctica begins.
• ". . . Eurasian barbarians of North Terra, the human debris of the Atomic Wars, against whom he had campaigned to protect the reclamation projects." [WC]
• "I was born in Antarctica. . . ." [FDP]
• ". . . burrow-cities, like the ones built in the Northern Hemisphere of Terra during the Third and Fourth World Wars. . . ." [FDP]
• ". . . nuclear bomb radiations on Terra during and after the Third and Fourth World Wars." [FS]

53
(1996)

"Omnilingual" (published February 1957).

First human expedition to Mars. "(Cyrano Expedition. Col. Hubert Penrose.)" [HBP]
• ". . . Gloria was the leading contender for the title of Miss Mars, 1996. . . ." [OL]
Discovery of ancient Martian civilization.
• ". . . on Mars.  A whole race, a whole species, died while the first Crò-Magnon cave-artist was daubing pictures of reindeer and bison; . . . the last Martian had died five hundred centuries ago; . . . one of the places where the Martian race perished; . . . one city, of the last Martian civilization." [OL]

c55-100
(c1998-2043)

Further exploration of Mars, Venus, Asteroid Belt, and Moons of Jupiter. [HBP]
• "This [Mars] expedition is a cadre of leadership—not only the Space Force people, who'll be the commanders of the main expedition [aboard Schiaparelli], but us scientists, too; . . . in readiness for the arrival [on Mars], in a year and a half, of the five hundred members of the main expedition. . . ." [OL]

c60-105
(c2003-48)

First Terran Federation begins to crack under strains of colonial claims and counter-claims of member states; serious financial dislocations. [HBP]
• ". . . population pressure like Terra in the First Century." [SV]

?

Terran Federation establishes colonies on Mars.
• ". . . the colonies on Mars and Venus; . . .colonies on Mars and Venus; . . . the revolt of the colonies on Mars and Venus." [EK; JFC says 108 AE but HBP implies this must occur prior to WWIV.]

?

Terran Federation establishes colonies on Venus.
• ". . . the colonies on Mars and Venus; . . .colonies on Mars and Venus; . . . the revolt of the colonies on Mars and Venus." [EK; JFC says 116 AE but HBP implies this must occur prior to WWIV.]

92
(2035)

Contragravity is developed. [HBP; JFC]

?

Nuclear-electric energy conversion, collapsed-matter shielding are developed. [HBP]
• "Look how the power interests tried to suppress the discovery of direct conversion of nuclear energy to electric current, back in the First Century." [FS]

AE (AD) Date

2nd Century AE (2043-2142 AD)

c105
(c2048)

Colonial "claims and counter-claims of [Terran Federation] member states" sparks revolt of colonies on Mars and Venus. [HBP]
• ". . . the revolt of the colonies on Mars and Venus." [EK]
• "One of the Second Century Martian Colonial poets; . . . There must have been colonies inside the Sol System, before the Interstellar Era, that hadn't turned out any better than Poictesme." [GD]
• "They had [anti-technological movements] on Terra . . . after Venus seceded from the First Federation, before the Second Federation was organized." [SV; JFC says 174 AE but HBP implies this must occur prior to WWIV]

106
(2049)

Fourth World War ("First Interplanetary War") begins. [HBP]

109
(2052)

Fourth World War ends.  Complete devastation of Northern Hemisphere of Terra. [HBP]
• ". . . the Southern Hemisphere managed to stay out of the Third and Fourth World Wars. . . ." [UU]
• ". . . burrow-cities, like the ones built in the Northern Hemisphere of Terra during the Third and Fourth World Wars. . . ." [FDP]
• ". . . nuclear bomb radiations on Terra during and after the Third and Fourth World Wars, at the beginning of the First Federation. . . ." [FS]

114
(2057)

Unspecified crisis in the first Terran Federation. [UU]
• ". . . the old U.S. [atomic bomb] data that General Lanningham brought to South America after the debacle in the United States. . . ." [UU]

c119
(c2062)

Minor warfare following the Fourth World War comes to an end. [HBP]

c127
(c2070)

South Africa, Australia, New Zealand, Brazil, Argentina and other nation-states reform (second) Terran Federation. [HBP; JFC says 183 AE]
• ". . . the end of civilization in the Northern Hemisphere and the rise of the new civilization in South America and South Africa and Australia; . . . in the English-Spanish-Afrikaans-Portuguese mixture that was Sixth Century, A.E., Lingua Terra." [UU]
• "Completely unified world [of 2050 to 2070], abolition of all national states under a single world sovereignty. . . ." [EK]
• ". . . after Venus seceded from the First Federation, before the Second Federation was organized." [SV]
• ". . . Lingua Terra is . . . [an] indiscriminate mixture of English, Spanish, Portuguese, and Afrikaans. . . ." [FS]
• ". . . Britain was a great nation, once; the last nation to join the Terran Federation. . . ." [KP]

?

Wars of colonial pacification and consolidation; the new Terran Federation imposes a System-wide pax. [HBP]

172
(2115

Keene-Gonzales-Dillingham Theory of Non-Einsteinian Relativity. [HBP]

183
(2126)

Dillingham hyperdrive developed. [HBP]

192
(2135)

First expedition to Alpha Centauri. [HBP; JFC says 144 AE]
• ". . . in the five centuries since the first Terran starship left the Sol System." [FS]

AE (AD) Date

3rd Century AE (2143-2242 AD)

200
(2143)

Atomic Era dating adopted. [HBP]
• "They used Atomic Era dating exclusively on Venus, and he always had to count on his fingers to transpose to Christian Era. . . ." [WC]

?

Interstellar exploration, colonization, and expansion begins. [HBP]
• ". . . the race that had gone out from the Sol system in the Third Century. . . ." [SV]

?

Thor discovered, Thorans encountered.
• ". . . the Thor Company, and the Loki Company, and the Yggdrasil Company.  They were all chartered for inhabited planets. . . ." [WC]

?

Loki discovered, Lokians encountered.
• ". . . the Thor Company, and the Loki Company, and the Yggdrasil Company.  They were all chartered for inhabited planets. . . ." [WC]

?

Yggdrasil discovered, Khooghra encountered.
• ". . . the Thor Company, and the Loki Company, and the Yggdrasil Company.  They were all chartered for inhabited planets. . . ." [WC]

?

"When in the Course—" (published in 1981)

Freya discovered, Freyans encountered, Freya Company chartered. [WC]
• ". . . Freya, where the people were human to the last degree; . . . one of my great-grandmothers was a Freyan." [UU]

AE (AD) Date

4th Century AE (2243-2342 AD)

c350
(c2293)

Marduk settled.
• "Marduk . . . had first been colonized in the Fourth Century.". [SV]

c380
(c2323)

Fenris settled, Fenris Company chartered.
• "The chartered company that colonized [Fenris], back at the end of the Fourth Century A.E. . . .". [FDP]

c390
(c2333)

Chartered Fenris Company goes bankrupt, most colonists evacuated.
• "The chartered company that colonized [Fenris] . . . went bankrupt in ten years. . . .". [FDP]

AE (AD) Date

5th Century AE (2343-2442 AD)

c465
(c2408)

Loki Enslavements come to an end; mastermind Anton Gerrit escapes to Baldur.
• "Anton Gerrit was the mastermind.  The ones who were caught, fifteen years ago, were the underlings, but Ravick was the real Number One.  He was responsible for the enslavement of from twenty to thirty thousand Lokian natives, gentle, harmless, friendly people, most of whom were worked to death in the mines." [FDP]
• "Gerrit got away, with a month's start.  By the time we had traced him to Baldur, he had a year's start on us." [FDP]

c480
(c2423)

Four-Day Planet (published in 1961).

Anton Gerrit, leader of Loki enslavement, captured on Fenris; Kapstaad Chemical Products, Ltd., monopoly on Fenris tallow wax broken by Argentine Exotic Organics.
• The Port Sandor spaceport on Fenris "was built close to a hundred years ago, when the population was" over 200,000. [FDP]

AE (AD) Date

6th Century AE (2443-2542 AD)

c500
(c2443)

Federation forces intervene on Fenris with nuclear weapons.
• "[What] nuclear weapons . . . did on . . . Fenris. . . .". [UU] "[The Federation will] send the Federation Space Navy, and [Uller will] get it worse than Fenris did.". [UU]

526
(2469)

Uller Uprising (published in 1952).

Native revolt on Uller against Chartered Uller Company.
• "The Chartered Uller Company was taken over by the Government after the Uprising, in 526. . . .". [FOP]

580
(2523)

Jack Holloway is born.
• "Seventy-four: I was born in 580. I couldn't even estimate how much to allow for on time-differential for hyperspace trips.". [FS]

AE (AD) Date

7th Century AE (2543-2642 AD)

629
(2572)

Zarathustra is discovered and settled. [HBP; JFC; LF]
• ". . . the planet that had been called Zarathustra (for the last twenty-five [years]); . . . Only twenty-five years since this planet was discovered. . . ." [LF]

?

Fafnir, Imhotep and Irminsul discovered by the Hubert Penrose expedition. [NS]
• "There had been Fafnir; conditions there would correspond to Terra during the Cretaceous Period, but any Cretaceous dinosaur would have been cute and cuddly to the things on Fafnir.  Then there had been Imhotep; in twenty or thirty thousand years, it would be a fine planet, but at present it was undergoing an extensive glaciation.  And Irminsul, covered with forests of gigantic trees; it would have been fine except for the fauna, which was nasty, especially a race of subsapient near-humanoids who had just gotten as far as clubs and coup-de-poing axes." [NS]

c650
(c2593)

"Naudsonce" (published January 1962).

Svantovit discovered, Svants encountered.
• ". . . as anybody in the Seventh Century of the Atomic Era was. . . .". [NS]

c650
(c2593)

Poictesme is discovered by Genji Gartner and settled. [GD; JFC says 603 AE]

654
(2597)

Little Fuzzy (published in 1962).
Fuzzy Sapiens (published in 1964).
Fuzzies and Other People (published in 1984).

Terra-Baldur-Marduk Spacelines holds monopoly on travel to Zarathustra; Zarathustran Fuzzy sapience recognized; Zarathustra reclassified from Class III to Class IV world; Zarathustra Company charter revoked. [LF]

AE (AD) Date

8th Century AE (2643-2742 AD)

782
(2725)

Foxx Travis born, aide to commander of Federation army elements on Kwannon during the native revolt there and commander of the Third Fleet-Army Force headquartered on Poictesme during the System States War. [JFC; JP; OS]

AE (AD) Date

9th Century AE (2743-2842 AD)

812
(2755)

"Oomphel in the Sky" (published November 1960).

Miles Gilbert and Foxx Travis thwart native revolt on Kwannon. [HBP; JFC]

Aditya discovered. [JFC; SS]

839
(2782)

Systems States Alliance secedes from Federation. [HBP]

842-854
(2785-2797)

System States War. [HBP; JFC; JP]

851
(2794)

Federation forces destroy city of Kindelburg on Asmodai. [JP]

854
(2797)

Complete defeat of Alliance. [HBP; JFC; JP]

855
(2798)

Ten thousand refugees from Abigor and the remnants of the System States Alliance navy flee the Terran Federation and, ultimately, settle Excalibur, the first Sword-World. [HBP; JFC says 854; SV]

c856
(c2799

Franchard's Rise and Decline of the System States published. [EK]

c871
(c2814)

Conn Maxwell born. [JP]

894
(2837)

"Graveyard of Dreams" (published February 1958).
Junkyard Planet/The Cosmic Computer (published in 1963).

Merlin, the fabled Federation battle computer, is discovered on Poictesme by Conn Maxwell. [JP; JFC]

AE (AD) Date

10th Century AE (2843-2942 AD)

c905
(c2848)

Sword Worlds Joyeuse, Durendal and Flamberge colonized from Excalibur. [HBP; SV]

c915
(c2858)

Odin, Marduk, Baldur, Aton, Isis, etc. (Isis? Osiris? Freya? Vishnu?) move toward various degrees of autonomy from Federation. [HBP; SV]  Ambassador Guido Kayn, Federation Special Resident, declares himself President of independent Republic of Marduk. [SV; apocryphal]

c930
(c2873)

Sword-World Haulteclere colonized from Joyeuse. [HBP; SV]  (Morglay? Colada? Tizon?)

c935
(c2878)

Monarchy established on Marduk. [SV]  Eduarda Gelderen, Mayor of Malverton, overthrows Republic of Marduk government, declaring herself Custodian of Marduk, later Queen. [SV, apocryphal]

c950
(c2892)

Aditya abandoned by (or secedes from) Federation. [SS]

c955
(c2898)

Sword-World Gram colonized from Haulteclere. [HBP; SV]  (Curtana? Quernbiter? Twelfth Sword-World?) [SS, SV]

AE (AD) Date

11th Century AE (2943-3042 AD)

c1000
(c2943)

Interstellar Wars begin, a series of revolts and wars that lead to the collapse of the Terran Federation. [HBP, JFC, SV]

AE (AD) Date

12th Century AE (3043-3142 AD)

c1100
(c3043)

Terran Federation completely vanished. [HBP]
The "parallel between the buccaneers of the West Indies and the space-pirates in the days of the dissolution of the First Galactic Empire, in the Tenth Century of the Interstellar Era." [EK;  Presumably this reference is to the dissolution of the Terran Federation, the first interstellar Terro-human government, nearly a thousand years—ten centuries—after the advent of the faster-than-light Dillingham hyperdrive in 183 AE.]

1176
(3119)

The last Federation President , Elisabet Stauber (of Terra), deposed by Admiral Odilon Soowert, Tyrant of Uller. [EK, SV, apocryphal]

AE (AD) Date

13th Century AE (3143-3242 AD)

c1200
(c3143)

Interstellar Wars come to an end. [JFC; SV]

AE (AD) Date

14th Century AE (3243-3342 AD)

1359
(3302

First Sword-World ship returns from voyage to Old Federation; Aditya occupied by Morglay. [SV; SS; JFC; HBP says approximately 1450 AE]

AE (AD) Date

15th Century AE (3343-3442 AD)

c1450
(c3393

First Sword-World ships enter Old Federation space-volume. [HBP; see 1359 AE]

AE (AD) Date

16th Century AE (3443-3542 AD)

c1595
(c3538)

After an unsuccessful raid on Aton by six ships from Haulteclere, Space Vikings no longer raid "civilized worlds" in the Old Federation. [SV; JFC says 1503]

AE (AD) Date

17th Century AE (3543-3642 AD)

c1600
(c3542)

Aditya in the Old Federation abandoned during dynastic war on Morglay. [SS]

c1615
(c3558)

Skathi in the Old Federation is deserted by Space Vikings. [SV; JFC says 1473]

c1650
(c3593)

Marduk-Odin "false war." [SV]

c1665
(c3608)

During war between Aton and Baldur, the Planetary Nationalist Party takes power on Aton and forms a dictatorship. [SV; JFC says 1548 AE]

AE (AD) Date

18th Century AE (3643-3742 AD)

c1716
(c3659)

Space Viking (published in 1962-63).

Lucas Trask leaves Gram for Tanith in the Old Federation. [SV]

c1723
(c3666)

Battle of Adhumla between Trask's nascent League and Dunnan's Space Vikings. [SV]

c1725
(c3668)

With support from Haulteclere and Space Viking fleet from Xochitl, exiled Duke Omfray of Glaspyth attempts to overthrow King Angus of Gram. [SV]

Battle of Marduk between alliance of Trask's nascent League and loyalist Mardukan forces and Dunnan's Space Vikings and Makann's Mardukan usurpers. [SV]

c1730
(c3673)

King Lucas of Tanith and Prince Simon of Marduk establish League of Civilized Worlds. [HBP; SV]

AE (AD) Date

19th Century AE (3743-3842 AD)

c1880
(c3823)

House of Bentrick on Marduk dissolves League of Civilized Worlds and proclaims (first) Galactic Empire. [HBP; SS; JFC says 1848]

AE (AD) Date

20th Century AE (3843-3942 AD)

1900
(3843)

Imperial Era (IE) dating system begins; 20th Century AE corresponds to 1st Century IE. [HBP]

c1980
(c3923)

Emperor Steven IV transfers capital of Galactic Empire from Marduk ot Odin. [HBP; JFC says 1936 AE]

AE (AD) Date

21st Century AE (3943-4042 AD)

c2035
(c3978)

Sword Worlds added to the Galactic Empire. [FH; JFC says 1904 AE]

AE (AD) Date

22nd Century AE (4043-4142 AD)

c2150
(c4093)

"A Slave is a Slave" (published April 1962).

Aditya conquered by the Galactic Empire. [SS]

AE (AD) Date

23rd Century AE (4143-4242 AD)

c2295
(c4238)

Rodrik VI completes consolidation of (first) Galactic Empire. [FH; JFC says 2162 AE]

AE (AD) Date

24th Century AE (4243-4342 AD)

AE (AD) Date

25th Century AE (4343-4442 AD)

AE (AD) Date

26th Century AE (4443-4542 AD)

AE (AD) Date

27th Century AE (4543-4642 AD)

AE (AD) Date

28th Century AE (4643-4742 AD)

AE (AD) Date

29th Century AE (4743-4842 AD)

AE (AD) Date

30th Century AE (4843-4942 AD)

AE (AD) Date

31st Century AE (4943-5042 AD)

c3050
(c4993)

"Ministry of Disturbance" (published December 1958).

Emperor Paul XXII and Prince Yorn Travann "undertake to arouse the Empire to new efforts". [JFC says 2936 AE]

—
—

—
—

AE (AD) Date

301st Century AE (31,943-32,042 AD)

c30,050
(c31,993)

"The Keeper" (published July 1957).

Scholar/explorers at the height of the Fifth Galactic Empire discover that a glacial Terra was the birthplace of humanity.

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