Timeline of Injustice

Pre-Flashpoint

 * 2018
 * The Flash defeats the Rogues, assisted by the Justice League.
 * The Flash runs back in time, creating Flashpoint by saving his mother.

Post-Flashpoint

 * 1981
 * February 19, Bruce Wayne is born.
 * 1983
 * January 17, Lois Lane is born.
 * June 18, Kal-El is born on Krypton.
 * December, Kal-El is sent to Earth in a pod, following Kryptons destruction.
 * Thomas Elliot is born.
 * 1991
 * September 26, Thomas and Martha Wayne are murdered by Joe Chill.
 * 1992
 * July 30, Kate and Elizabeth Kane are born.
 * 1993
 * January 16, Wally West is born.
 * Roy Harper is born.
 * Karen Beecher is born.
 * 1994
 * March 21, Dick Grayson is born.
 * 1995
 * June 29, Victor Stone is born.
 * 1998
 * Garfield Logan is born.
 * Billy Batson is born.
 * 2001
 * Bruce Wayne meets Talia al Ghul.
 * 2002
 * August 17, Damian Wayne is born.
 * 2004
 * July 30, Gabi, Kate, and Elizabeth Kane are taken hostage.
 * July 31, Elizabeth and Gabi Kane are killed, Kate getting rescued by her father.
 * 2006
 * Bruce Wayne debuts as Batman.
 * The man that would become the Joker falls into a vat of chemicals.
 * 2007
 * The Joker appears in Gotham City.
 * June 28, John and Mary Grayson are murdered by Tony Zucco.
 * June 28, Bruce Wayne adopts Dick Grayson.
 * December, Dick Grayson becomes Robin.
 * 2008
 * Superman debuts in Metropolis.
 * Superman and Lex Luthor become allies.
 * 2009
 * Garfield Logan becomes Beast Boy.
 * Dick Grayson leaves Batman.
 * Dick Grayson founds the Teen Titans.
 * 2011
 * Kate Kane is expelled from Point Rock Academy.
 * Batman saves Kate Kane from a street gang.
 * Kate Kane is sent away for 2 years of training to become a vigilante by Jacob Kane.
 * Starfire crashes on Earth, in an attempt to escape the Gordanians.
 * Starfire is rescued by the Teen Titans.
 * 2012
 * Billy Batson debuts as Shazam.
 * Dick Grayson quits the Robin mantle, becoming Nightwing.
 * November 4, The Justice League is founded.
 * November 6, Damian Wayne is taken in by his father, Bruce.
 * November 7, Damian Wayne debuts as the second Robin.
 * November 11, The Justice League assists Atlantis in defeating Ocean Master.
 * November 28, Nightwing and Robin take down members of Scarecrow's gang.
 * 2013
 * February or March,
 * Batman fights Robin, after encounters involving Talon and the Court of Owls.
 * May, Kate Kane debuts as Batwoman.
 * November,
 * Batman goes missing for two weeks, following a fight against the Heretic.
 * Nightwing temporarily becomes the new Batman.
 * Batman is rescued from Nanda Parbat by Nightwing, Batwoman, Robin and Batwing.
 * 2015
 * Weather Wizard is temporarily mind controlled by Trigon.
 * Trigon mind controls the Justice League, leading them to fighting the Teen Titans.
 * The Suicide Squad is founded.
 * 2016
 * Jason Blood dies, after being separated from Etrigan.
 * Terra perishes, after almost betraying the Titans to Deathstroke.
 * 2017
 * September, Superman is killed by Doomsday.
 * 2018
 * The Flash returns from Flashpoint, delivering a letter to Batman.
 * March,
 * Lex Luthor releases the Superboy clone he created, behind Superman's back.
 * Superman is resurrected.
 * Superboy becomes active, attempting to become the new Superman.
 * Superman defeats Cyborg Superman.
 * The Justice League is thought to have been killed by Darkseid.
 * November,
 * Thomas Elliot is murdered.
 * Batman defeats Hush, who is revealed to be the Riddler.
 * Catwoman decides to remain with Batman.
 * 2019,
 * February,
 * Wonder Woman defeats Silver Swan.