Timeline

February

 * 22nd
 * George Washington was born in Westmoreland, Virginia Colony, British America.

October

 * 6th
 * Percival Hall was born.

June

 * 6th
 * Nathan Hale was born in Coventry, Connecticut Colony.

Unknown

 * Nathan Hale became what is later considered the first Agent X.

March

 * 30th
 * Thaddeus Fielding was born.

September

 * 22nd
 * Nathan Hale was executed by the British in New York City, Province of New York.

March

 * 19th
 * Percival Hall died.

December

 * 14th
 * George Washington died at Mount Vernon, Virginia, United States of America.

April

 * 19th
 * Thaddeus Fielding died.

January

 * 20th
 * David Williams was born.

August

 * 20th
 * Gray Lawson was born.

August

 * 20th
 * Raymond Marks was born.

September

 * 23rd
 * Josh Robin was born.

May

 * 24th
 * Christian Fernandez was born.

May

 * 7th
 * Raymond Marks was presumed dead when he was apparently killed in an explosion. However, he survived and later became known as Nicolas Volker.

2012

 * Steven, a Master Sergeant, met Pamela Richardson.
 * Steven was recruited into the Agent X program.

2013

 * Steven broke up with Pamela Richardson and later assumed the name John Case.

2016

 * Vice President Natalie Maccabee was told about the Agent X program by Malcolm Millar and John Case.
 * David Williams was killed.
 * Gray Lawson was poisoned and killed by Josh Robin.
 * Josh Robin was pushed over a ledge and killed by Miles Lathem.

Media chronology
2012 2013 2016
 * Agent X - "The Devil and John Case"
 * Agent X - "Pilot"
 * Agent X - "The Long Walk Home"
 * Agent X - "Back in Your Arms"
 * Agent X - "The Sacrifice"
 * Agent X - "The Long Walk Home"
 * Agent X - "Angels & Demons"
 * Agent X - "Penultimatum"
 * Agent X - "Pilot"
 * Agent X - "The Enemy of My Enemy"
 * Agent X - "Back in Your Arms"
 * Agent X - "The Devil and John Case"
 * Agent X - "Truth, Lies, and Consequences"
 * Agent X - "The Sacrifice"
 * Agent X - "The Long Walk Home"
 * Agent X - "Angels & Demons"
 * Agent X - "Penultimatum"