Histoire du passé et du futur d'après Traveller

Ancient Times

-310,000 to -290,000 - Ancient civilization period. Human stock transplanted
During this time the Ancients create a multiworld rosette at Tireen (Knaeleng 2910), in the Vargr extents, an unfinished ringworld at Leenitakot (Hinterworlds 1432), and an incomplete sphereworld at Sphere (Nooq 3201) which is home to the Inheritors.

Pre Imperium

-10,011 (4,547 PI) - First Vilani space exploration
-9235 (3,955 PI) - Vilani discover jump drive
-7980 - First Zhodani space exploration
-6731 (1.1 Zhodani) - Zhodani dating begins with first Psionic Games
-5415 - (581.3 Zhodani) Zhodani discover jump drive
-5400 (1,032 PI) - Vilani start Consolidation Wars
-4698 - Hiver discover jump drive
-4142 - K'kree discover jump drive

First Imperium

-4045 (1 VI) - Vilani Consolidation Wars end. Ziru Sirka founded.
-4000 (1211.1 Zhodani) - First Zhodani Core Expedition
-4000 (35 VI) - Vilani stop exploration.
-3810 - Vargr discover jump drive (jump-1)
-2555 (AD 1961) - First manned space flight on Terra
-2530 - Vargr discover rosette at Tireen
-2499 (AD 2024[1]) - Treaty of New York (widely considered de facto start of Terran Confederation)
-2431 (AD 2087) - Solomani discover jump drive
-2422 (AD 2097[1]) - First contact between Vilani and Solomani at Barnard's Star
-2404 (AD 2114[1]) - First Interstellar War starts
-2400 (1249 VI, AD 2122[1]) - First Interstellar War ends
-2398 (AD 2124[1]) - United Nations on Terra changes its name to Terran Confederation; Terrans develop jump-2[1]

Second Imperium

-2204 (AD 2314) - Rule of Man begins
-2136 - First Aslan space exploration
-2029 to -2013 Hiver-K'kree War
-1999 - Aslan discover Jump Drive
-1776 - (AD 2742) Collapse of Rule of Man; Long Night begins
-650 - Sylean Federation founded on Sylea

Third Imperium

0 - Third Imperium established (T4 Setting) founded by Cleon Zhunastu
420 - First Survey of Imperium completed
589-604 - First Frontier War
615-620 - Second Frontier War
704 (AD 5222) - Solomani Autonomous Region Created
750 - Seventh Zhodani Core Expedition
871 - (AD 5389) - Solomani Confederation established
979-986 - Third Frontier War
990 - (AD 5508) - Solomani Rim War begins
1002 (AD 5520) - Siege of Terra. End of Solomani Rim War
1065 - Second Survey of Imperium completed
1082-1084 - False War (Fourth Frontier War)
1105 (Mongoose Traveller setting)
1107-1110 - Fifth Frontier War (CT Setting)
1116 - Strephon murdered by Dulinor. Start of Rebellion (MT Setting)
1130 - Collapse of the Third Imperium.

Post Third Imperium

1200 - Reformation Coalition Established (TNE Setting)
1221 - Foundation of the Fourth Imperium

Source : http://wiki.travellerrpg.com/History