1945: Parry white was born
1946: Jon Kent was born
1948: Martha Kent was born
1950: Kara In-Ze is born.
1952: Général Hardcastle was born
1961: Emil Hamilton was born
1963: Lex Luthor is born
1964: Marcy Graves is born.
Kal el would have been born in early 1966 and then he is sent the earth a few months later after krypton's destruction, and given the name Clark Kent by John and Martha Kent.
1966: 16 year old Kara In-Ze goes into cryo staise.
in 1967 a large chunk of green Kryptonite is mistaken for Jade and carved into the Laughing dragon.
1968: Lois lane is born.
1980: Jimmy Olsen is born.
1984: Clark learns about his kryptonian Heritage.
1984-1992 begin's training to master his powers, along with how to put up mental barriers.
1992: Clark Kent attends Metropolis University to get his degree in journalism, and begins operating as a vigilante.
1996: after graduating college Clark gets a job lined up at the Daily Planet, with his superhero Persona becoming known to the public, well trying to stop a group of mercenaries that have been hired by the Kaznian government. with help from Star Labs Superman develop a space suit, using the rocket ship that he came to Earth and he travels to the system were Krypton was once located and discovers the near by planet argo where he find it's only Survivor Kara In-Ze and brings her back to earth.
1997: Batman and Superman team up.
1998: Kira becomes supergirl
1999: Lex Luthor almost caused a war with Atlantis
1999: Superman gets brainwashed by Darkseid and is sent against Earth
2000: Superman Works to rebuild his reputation
2001: the Justice League is formed.
I'll be honest this is the best I could come up with since Superman doesn't have as big of a presence as Batman doesn't the dcau.