UPDATED 9:46 AM EST, November 13, 2012
WASHINGTON (AP) — The extramarital affair that brought down David Petraeus' celebrated career last week raised many questions. Among them: when exactly the affair began, how the FBI stumbled upon the information and who was told about it. Here's a timeline of events, according to officials involved in the investigation:
___
Spring 2006 — Paula Broadwell meets Petraeus at Harvard University, where she is a graduate student. Petraeus is a lieutenant general working on a manual about counterinsurgency and is invited to give a speech about his experiences in Iraq.




