Changes

|M22{{Fn|1}}{{Fn|2}}{{Fn|3}}|The development of the ''navigator gene'' allows human pilots called [[Navigator]]s to make longer and faster 'jumps' through the [[Warp]] than was previously thought possible. The great Navigator families, initially controlled by industrial and trading cartels, gradually become power bases in their own right. [[Human]]ity continues to explore and colonise the galaxy, while the human worlds politically unite and a golden age of scientific achievement begins. Non-aggression pacts are signed between humanity and dozens of alien races. Perfection of the [[Standard Template Construct]] (STC) system allows an almost explosive Human expansion to the stars. This '''Golden Age of Mankind''' continues until [[M25]].{{Fn|[[Warhammer 40,000: Rogue Trader]], [[Space Marine (Novel)1}}{{Fn|''Space Marine'']] by Ian Watson, [[Galaxy In Flames (Novel)2}}{{Fn|''Galaxy in Flames'']] page 410 by Ben Counter3}}

|On the order of the [[Cabal]], [[Damon Prytanis]] murders Maser Hassan in the Spire Temple before he can give his ''Word of the Law'' speech.{{Fn|[[The Unremembered Empire (Novel)|The Unremembered Empire]] Chapter 74}}

|late M22{{Fn|5}}|[[Psyker]]s are first mentioned in records. They make sudden appearances across all human civilizations.{{Fn|[[Warhammer 40,000 6th Edition Rulebook]] pg. 1675}}