1935: Charles Xavier is born to Brian and Sharon Xavier, workers on an American nuclear project never revealed to the general public.
1945: The Trinity nuclear test at Alamogordo on the 16th of July kills Brian Xavier.
1946: Sharon marries Kurt Marko - also at Alamogordo, and blamed by Charles for his father's death - who then moves into the Xavier family home.
c1948: Kurt is killed in a lab accident. Soon after, Xavier discovers his psychic powers.
1953: After joining the army, Xavier (along with Kurt's son Cain) is deployed to Korea.
1968: Xavier faces Lucifer in Tibet, in a struggle that costs him the use of his legs.
1977: Xavier founds the X-Men.