Earth-1

Earth-1 is a universe in the infinite multiverse, considered the nexus, or the center amongst the Earths.

History
Earth became home to numerous heroes around the globe, and throughout time. The 21st century being the most common-filled place of heroes, coined the "Age of Heroes" by residents of the 31st century. Heroes among these include the vigilante group known as the Travelers, the Flash, a vigilante known as Superman, and many more.

B.C.

 * Big Bang

A.D.

 * World War I (1914-1918)
 * Flame-Frost War (1918-2018)
 * World War II (1939-1945)
 * Cold War (1947-1991)
 * Vietnam War (1955-1975)
 * Destruction of Krypton (1995)
 * Temporal Keystone Wave (2001)
 * Debut of the Flash (2007)
 * Death of the Flash (2016)
 * Foundation of the Travelers (2016)
 * Syphon's attack on the Gem City Bridge (2017)
 * The Travelers, The Red, and The Green's war against The Rot (2018)
 * Liberation of Blackhawk Island (2018)
 * The Travelers and The Legion halt the Eternal Freeze (2019)
 * Bart Allen debuts as the Flash (2019)
 * Amanda Hernandez and Kyler'r leave Earth (2019)
 * Foundation of the Legion of Superheroes (3000s)
 * Dominator Invasion (3056)