Hillary Clinton's email controversy -- timeline

• January 13 2009: Hillary Clinton's aide Justin Cooper sets up clintonemail.com domain. Huma Abedin signs off on it 
• January 21: Clinton is sworn in as Secretary of State
• 18 March: Clinton stops using her BlackBerry email account and switches to the newly created hdr22@clintonemail.com account. The domain is hosted on her own private email server, set up by her aide Bryan Pagliano
• September 11, 2012: Four Americans are killed in attack on a U.S. base in Benghazi, Libya including Ambassador Chris Stevens
• February 1, 2013: Clinton steps down as secretary of state 
• October 28, 2014: State Department demands Clinton's work-related correspondence as part of a congressional investigation into Benghazi
• Fall 2014: Clinton's lawyers deletes 33,000 emails which they claim are 'personal' 
• December 5, 2014: Clinton's legal team provide roughly 30,000 emails to the State Department when they are demanded by a congressional investigation into Benghazi. 
• March 2 2015: The New York Times breaks the news that Clinton used a personal email account to conduct government business while secretary of state
• July 25: Clinton says she is confident none of the emails on her private email server were classified at the time of sending and receiving
• August 4: The Washington Post reveals the FBI has begun looking into the security of Clinton's private email set-up
• September 10: Bryan Pagliano formally asserts his Fifth Amendment right against self-incrimination rather than answer questions from a Republican-led House committee on her email arrangements
• July 6, 2016: The Justice Department closes Clinton email probe and FBI Director James Comey announces the FBI won't prosecute. The decision was made by Comey because Attorney General Loretta Lynch had to recuse herself after a secret meeting with Bill Clinton
• October 7: WikiLeaks begins release of thousands of emails hacked from the Gmail account of John Podesta, Clinton's campaign chair
• October 28: FBI reopens its investigation into Clinton's server

Memo that Comey sent out on 28 Oct 2016