"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"

1st Century AE
(1943-2042 AD)

0
(1943)

First self-sustaining nuclear fission reaction at Chicago. ⁽¹⁴⁾

2
(1945)

World War II ends.

27
(1970)

Kilroy, first unmanned rocket, launched by United States, lands on the Moon. ^{(14, 3)}

c29
(c1972)

Lunar base established by United States. ⁽³⁾

30
(1973)

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

Khalid ib'n Hussein assassinated at Basra, anarchy and inter-faction struggles in Islamic Caliphate followed by Turkish intervention. ⁽³⁾

c31
(c1974)

United Nations collapses. ^{(14, 3)}

32
(1975)

World War III ("Thirty Days' War"). ^{(14, 17)}

Terran Federation formed under United States leadership. ^{(14, 3)}

53
(1996)

"Omnilingual" (published February 1957).

First human expedition to Mars, discovery of extinct Martian civilization. ⁽²⁾

c55-100
(c1998-2043)

Further exploration of Mars, Venus, Asteroid Belt, and Moons of Jupiter. ⁽¹⁴⁾

c60-105
(c2003-48)

First Terran Federation begins to crack under strains of colonial claims and counter-claims of member states; serious financial dislocations. ^{(14; 17 places first Mars colony in 108 AE and first Venus colony in 116 AE but Piper implies these must occur prior to WWIV)}

92
(2035)

Contragravity is developed. ⁽¹⁷⁾

2nd Century AE
(2043-2142 AD)

c105
(c2048)

Venus secedes from the (first) Terran Federation. ^{(11; 17 says 174 AE but 14 implies this must occur prior to WWIV)}

106
(2049)

World War IV begins ("First Interplanetary War"). ^{(14, 16; 1, p. 64)}

109
(2052)

World War IV ends. ^{(14; 3, pp. 21-2; 16; 1, p. 64)}

114
(2057)

After a "debacle in the United States," Generla Lanningham brings U.S. atom bomb data to South America. ^{(1, p. 169)}

c119
(c2062)

South Africa, Australia, New Zealand, Brazil, and Argentina form the second Terran Federation. ^{(14; 17 says 183 AE)}

c127
(c2070)

Reformed (second) Terran Federation establishes single world sovereignty when Britain becomes the last nation to join; colonies on Mars and Luna. ^{(14; 3. pp. 21-2; 4)}

183
(2126

Dillingham hyperdrive developed. ⁽¹⁴⁾

192
(2135)

First expedition to Alpha Centauri. ^{(14; 17 says 144 AE)}

3rd Century AE
(2143-2242 AD)

200
(2143)

Atomic Era dating adopted. ⁽¹⁴⁾

?

Terro-human interstellar exploration, colonization, and expansion begins. ^{(14; 11)}

?

Thor discovered, Thorans encountered, Thor Company chartered. ⁽¹⁶⁾

?

Loki discovered, Lokians encountered, Loki Company chartered. ⁽¹⁶⁾

?

Yggdrasil discovered, Khooghra encountered, Yggdrasil Company chartered. ⁽¹⁶⁾

?

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

Freya discovered, Freyans encountered, Freya Company chartered. ⁽¹⁶⁾

4th Century AE
(2243-2342 AD)

c350
(c2293)

Marduk settled.
• "Marduk . . . had first been colonized in the Fourth Century.". ⁽¹¹⁾

c380
(c2323)

Fenris settled, Fenris Company chartered.
• "The chartered company that colonized [Fenris], back at the end of the Fourth Century A.E. . . .". ⁽⁸⁾

c390
(c2333)

Chartered Fenris Company goes bankrupt, most colonists evacuated.
• "The chartered company that colonized [Fenris] . . . went bankrupt in ten years. . . .". ^{(8, p. 6)}

5th Century AE
(2343-2442 AD)

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. ⁽⁸⁾

6th Century AE
(2443-2542 AD)

c500
(c2443)

Federation forces intervene on Fenris with nuclear weapons.
• "[What] nuclear weapons . . . did on . . . Fenris. . . .". ⁽¹⁾ "[The Federation will] send the Federation Space Navy, and [Uller will] get it worse than Fenris did.". ⁽¹⁾

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. . . .". ⁽¹⁸⁾

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.". ⁽¹⁵⁾

7th Century AE
(2543-2642 AD)

629
(2572)

Zarathustra is discovered and settled. ^{(14; 17; 12)}

?

Fafnir, Imhotep and Irminsul discovered by the crew of the Hubert Penrose. ⁽⁹⁾

c650
(c2593)

"Naudsonce" (published January 1962).

Svantovit discovered, Svants encountered.
• ". . . as anybody in the Seventh Century of the Atomic Era was. . . .". ⁽⁹⁾

c650
(c2593)

Poictesme is discovered by Genji Gartner and settled. ^{(5; 17 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. ⁽¹²⁾

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. ^{(17; 13; 7)}

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. ^{(14; 17)}

Aditya discovered. ^{(17; 10, p. 67)}

839
(2782)

Systems States Alliance secedes from Federation. ⁽¹⁴⁾

842-854
(2785-2797)

System States War. ^{(13; 14; 17)}

851
(2794)

Federation forces destroy city of Kindelburg on Asmodai. ⁽¹³⁾

855
(2798)

Ten thousand refugees from Abigor (named for a demon that could foretell the future and provide military advice) and the remnants of the System States Alliance navy flee the Terran Federation and settle Excalibur, the first Sword World. ^{(14; 17 says 854; 11)}

c856
(c2799

Franchard's Rise and Decline of the System States published. ^{(3, p. 16)}

c871
(c2814)

Conn Maxwell born. ⁽¹³⁾

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. ^{(13; 17)}

c895
(c2838)

Sword Worlds Joyeuse, Durendal and Flamberge colonized from Excalibur. ^{(14; 11)}

10th Century AE
(2843-2942 AD)

c915
(c2858)

Sword World Haulteclere colonized from Joyeuse (Morglay? Curtana?). ^{(14; 11)}

c935
(c2878)

Sword World Gram colonized from Haulteclere (Tizona? Quernbiter? Twelfth Sword World?). ^{(14; 11)}

c950
(c2892)

Aditya abandoned by (or secedes from) Federation. ^{(10, p. 67)}

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, begin. ^{(14; 17; 11, p. 12)}

12th Century AE
(3043-3142 AD)

c1100
(c3043

Terran Federation completely vanished. ⁽¹⁴⁾ Assuming the "dissolution of the First Galactic Empire, in the Tenth Century of the Interstellar Era" mentioned in "Edge of the Knife". ^{(3 p. 28)} actually refers to the collapse of the Terran Federation it would be some date between approximately 1092 AE (3035 AD) and 1191 AE (3134 AD).

13th Century AE
(3143-3242 AD)

c1200
(c3143)

Interstellar Wars come to an end. ^{(17; 11, p. 12)}

14th Century AE
(3243-3342 AD)

1359
(3302

First Sword World ship returns from voyage to Old Federation; Aditya occupied by Morglay. ^{(11, p. 10; 10, p. 87; 17; 14 says approximately 1450 AE)}

15th Century AE
(3343-3442 AD)

c1450
(c3393

First Sword-World ships enter Old Federation space-volume. ^{(14; see 1359 AE)}

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. ^{(11, p. 135, pp. 162-3; 17 says 1503)}

17th Century AE
(3543-3642 AD)

c1600
(c3542)

Aditya in the Old Federation abandoned during dynastic war on Morglay. ^{(10, p. 65, p. 68)}

c1615
(c3558)

Skathi in the Old Federation is deserted by Space Vikings. ^{(11, p. 182; 17 says 1473)}

c1650
(c3593)

Marduk-Odin 'false war'. ^{(11, p. 166, p. 191)}

c1665
(c3608)

During war between Aton and Baldur, the Planetary Nationalist Party takes power on Aton and forms a dictatorship. ^{(11 p. 151; 17 says 1548 AE)}

18th Century AE
(3643-3742 AD)

c1716
(c3659)

Space Viking (published in 1962-63).

Lucas Trask leaves Gram for Tanith in the Old Federation. ^{(11, p. 10)}

c1723
(c3666)

Battle of Adhumla between Trask's nascent League and Dunnan's Space Vikings. ⁽¹¹⁾

c1725
(c3668)

With support from Haulteclere and Space Viking fleet from Xochitl, exiled Duke Omfray of Glaspyth attempts to overthrow King Angus of Gram. ⁽¹¹⁾

Battle of Marduk between alliance of Trask's nascent League and loyalist Mardukan forces and Dunnan's Space Vikings and Makann's Mardukan usurpers. ⁽¹¹⁾

c1730
(c3673)

King Lucas of Tanith and Prince Simon of Marduk establish League of Civilized Worlds. ^{(14; 11)}

19th Century AE
(3743-3842 AD)

c1880
(c3823)

House of Bentrick on Marduk dissolves League of Civilized Worlds and proclaims (first) Galactic Empire. ^{(14; 10, p. 87; 17 says 1848)}

20th Century AE
(3843-3942 AD)

1900
(3843)

Imperial Era (IE) dating system begins; 20th Century AE corresponds to 1st Century IE. ⁽¹⁴⁾

c1980
(c3923)

Emperor Steven IV transfers capital of Galactic Empire from Marduk ot Odin. ^{(14; 17 says 1936 AE)}

21st Century AE
(3943-4042 AD)

c2035
(c3978)

Sword Worlds added to the Galactic Empire. ^{(14; 17 says 1904 AE)}

22nd Century AE
(4043-4142 AD)

c2150
(c4093)

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

Aditya conquered by the Galactic Empire. ⁽¹⁰⁾

23rd Century AE
(4143-4242 AD)

c2295
(c4238)

Rodrik VI completes consolidation of (first) Galactic Empire. ^{(14; 17 says 2162 AE)}

24th Century AE
(4243-4342 AD)

25th Century AE
(4343-4442 AD)

26th Century AE
(4443-4542 AD)

27th Century AE
(4543-4642 AD)

28th Century AE
(4643-4742 AD)

29th Century AE
(4743-4842 AD)

c2850?
(c4793?)

The "dissolution of the First Galactic Empire, in the Tenth Century of the Interstellar Era". ^{(3 p. 28; if it is assumed that "Interstellar Era" was meant to be "Imperial Era" this date conflicts with the date provided in Piper for "Ministry of Disturbance," set during the first Galactic Empire)}

30th Century AE
(4843-4942 AD)

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". ^{(17 says 2936 AE)}

—
—

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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