Timeline

Written by Damon Moudry (ETAmerican) with additional information by LaneyBug (contribution of several names that were originally unlisted)

1903 James Atherton is born.
1932 River Dog is born on the Mesaliko Indian Reservation.
1933 Claudia (maiden name unknown) – Jeff Parker’s mother – Is born.;
1942 Deputy Owen Blackwood is born on the Mesaliko Indian Reservation.
1947 Something crashes on a ranch owned by W.W. "Mac" Brazel.
  A day or two later, Mac drives into Roswell where he reported the incident to Sheriff George Wilcox, who reports it to Intelligence Officer, Major Jesse Marcel of the 509th Bomb Group who quarantines the crash site and removes debris. On July 8, 1947, a press release states that the wreckage of a flying disk has been recovered by the 509th Bomb Group at Roswell, by Col. William Blanchard. Hours later the first press release is rescinded and the second press release states that the 509th Bomb Group had mistakenly identified a weather balloon as wreckage of a flying saucer. (info. courtesy of the real International UFO Museum)
1951 Philip Evans is born. – Sheriff James Valenti is born.
1952 Diane (maiden name unknown) – Evans is born. – Special Agent Stephens (first name unknown) is born.
1955 Jeff Parker is born.
  Atherton publishes "Among Us", where he states various theories about the existence of Extra Terrestrials and how contact might be made.
1957 Nancy (maiden name unknown) – Parker (Liz’s mother) – Is born.
1958 Milton Ross – The curator of the UFO Museum is born.
1959 James Atherton is murdered at age 56 by a close friend known only as NASEDO (Misaliko for "visitor").
  Corner’s Office photos reveal a silver hand print on his upper left pectoral muscle. This murder is witnessed by River Dog who stands only a few hundred yards away and can do nothing (according to his account).
1961 Amy De Luca is born.
1964 Special Agent Topolsky is born.
1977 Philip and Diane Evans marry.
1979 Jeffery and Nancy Parker marry.
1983 Kyle Valenti is born. – Maria De Luca is born. – Alex Whitman is born. – Liz Parker is born.
1984 Jeff Parker opens up the Crashdown Cafe.
1987 Liz Parker wears the infamous cupcake dress to school in Kindergarten (which Max comments on in the Pilot episode).
1989 Max and Isabel Evans emerge from incubation pods in the New Mexico desert with the characteristics of six year old human children.
  They are picked up on the sideof the road by Philip and Diane Evans. Subsequently adopted and raised by the Evans. – Michael Guerin also emerges from incubation, but instead is picked up by Child Welfare and Protective Services. He is placed in foster home after foster home where he currently resides with a single white male (Hank Whitmore) living in a run down trailer park.
1991

Max Evans sees Liz Parker for the first time in third grade. – The international UFO Museum is founded in Roswell. It’s three founders are participants of the actual Roswell incident: Walter Haut, Glenn Dennis, and Max Little.

1992 Alex Whitman meets Liz Parker in fourth grade. However, they do not become close friends until the next year (fifth grade).
1999 Liz Parker is shot during an argument at the Crashdown. Max Evans uses his alien powers to heal her, setting off a chain reaction of events that are still unfolding…
  Claudia – Jeff Parker’s mother – dies in the hospital at age 66 (episode "Leaving Normal")