Timeline
1970?s- Early androids are created. (source: Dick novel)
1994- J.F. Sebastian is born. (source: movie)
Early 21st Century- Tyrell creates the Nexus series of replicant androids. (source: movie)
2003- Sarah Tyrell is born. (source: Jeter novels; comic)
2016 (?)- A rogue combat team of Nexus 6 replicants mutiny. Any and all replicants are declared illegal on earth. Blade Runner unit is created for hunting down any violators. (source: conjecture based on the dictionary definition in the workprint)
Jan. 8, 2016- Incept date of Roy Batty. (source: movie)
Feb. 14, 2016- Incept date of Pris. (source: movie)
June 12, 2016- Incept date of Zhora. (source: movie)
April 17, 2017- Incept date of Leon. (source: movie)
2018- The Sudermann Corporation releases the T-14 android model. Over 50 manage to escape to earth. The Pavlov Institute in the Soviet Union develops the Voight Empathy Scale to identify. (source: Dick novel) Later that year, research brings about the more effective Voight-Kampff Empathy Scale. (note: based on conjecture, as Deckard appears to already know how to perform the V-K test by 2019)
2018(?)- Rick Deckard quits RepDetect. (note: conjecture)
Nov. 2019- Six replicants highjack a shuttle to earth. Nexus 6 replicants become common knowledge in RepDetect. Rick Deckard is forced back into work as a Blade Runner. Not soon after, another group of Nexus 6 is reported. Rookie Blade Runner Ray McCoy is assigned to the case. (source: movie; computer game)
-Shotaro Kaneda
"Implants! Those aren't your mammories. They're somebody else's. They're Tyrell's niece's."