Milieu

Traveller Version

The Milieus are an artifact of the Traveller publication history. Each published version of Traveller included (or expanded upon) a period in the future history of Traveller.

• Also see History.

Description

The Milieu Categories section contains full articles, usually published with the selected version. The purpose of this to organize articles for a player group to be able to find (or exclude) articles if the information is (or is not) specific to the era in which they are playing.

Milieu Length

Each Milieu covers roughly between ten to several hundred years (...or more), enough time for some interesting events in the lives of the characters within the campaign, and the campaign itself. And there are no precisely-defined year borders for the beginning and end of a Milieu category.

Milieu vs. Timeline

In contrast, the Time line categories cover much broader (and larger) spans of time. The Time line articles are Year articles, each of which has a short reference to events (and links to the full articles). But the time line is much more precise about when each era ends and begins.

Traveller Game Eras & Editions (1977-2019)

Traveller Game Eras & Editions (1977-2019)

Setting Dates	Era Name (Milieu)	Primary Setting Events	Game Name	Pub. Date
(-2404 to -2203)	Interstellar Wars	First Imperium (Ziru Sirka) & Interstellar Wars	GURPS Traveller: Interstellar Wars	2002
(-2204 to -1776)	Rule of Man	Collapse of First Imperium & Rule of Man (Second Imperium)	GURPS Traveller: Interstellar Wars	2002
(-1775 to 0)	Long Night	Collapse of Second Imperium & Long Night	Marc Miller's Traveller	1996
(-30 to 120)	Milieu 0	Sylean Federation & Dawn of the Third Imperium Sub-Milieu: Pacification Campaigns (76-120)	Marc Miller's Traveller	1996
(120 to 474)	Milieu 200	Antebellum Years of the Third Imperium: Vargr Campaigns Ilelish Revolt
(475 to 621)	Milieu 500	The Imperial Disarray: Non-Dynastic Emperors, Civil War, 1st & 2nd Frontier War
(622 to 767)	Milieu 630	The Imperial Recovery
(768 to 939)	Milieu 800	The Imperial Stumbling Years The Psionics Suppressions (800-826)
(940 to 1002)	Milieu 940	Third Imperium & Solomani Crisis
(985 to 1002)	Milieu 990	Third Imperium & Solomani Rim War	Traveller D20	2002
(1002 to 1084)	Milieu 1000	Third Imperium: The New Millennium
(1085 to 1116)	Milieu 1100	Third Imperium Golden Era
(1105 to 1116)	Milieu 1105 Milieu 1116	Third Imperium: Base (Original) Setting (1105) · The Fifth Frontier War (1107 - 1110) · An Uncertain Future (1115 - 1116)	Classic Traveller & Traveller5 (T5)	1977
(1116 to 1130+)	Milieu 1120	GURPS Traveller: Alternate Setting (Timeline with no Rebellion)	GURPS Traveller	1998
(1117 to 1130)	Rebellion & Hard Times Milieu 1130	Collapse of Third Imperium: Rebellion / Imperial Successor States & Regency of Deneb	MegaTraveller	1986
(1130 to 1189)	Regency/Virus - "Short Dusk" Milieu 1130	Post-Collapse Imperial Successor States / Viral Plague & Regency
(1190 to 1220)	New Era Milieu 1200	Virus/New Era: Reformation Coalition & Regency	Traveller: The New Era	1992
(1221 to 1249+)	Fourth Imperium	Fourth Imperium	Traveller: The New Era	1992
(1221 to 1249)	Milieu 1248	Fourth Imperium	Traveller: The New Era	2006
(1300-1902+)	Milieu 1900	The Galaxiad: * Background: 1300-1900 · The Wave (1200-1450) · The Corsair Scourge (1134-1300) · Collapse (1300-1500) · Foreven War (1508) · False Spring (1780-1840) * Galaxiad Setting: 1902+	Traveller5 or T5	2015

Sources

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.