October 7, 2009 - Italy's Constitutional Court strikes down a 2008 law that would have given Berlusconi immunity from prosecution.
December 13, 2009 - Berlusconi is attacked at a rally in Milan and suffers a broken nose and several broken teeth.
December 14, 2010 - Survives parliamentary confidence vote in the lower house by three votes. The win sparks a demonstration in Rome where nearly 100 are injured.
January 14, 2011 - Magistrates in Milan reveal they are investigating whether Berlusconi paid for sex with an underage girl and then abused his power by trying to cover it up.
January 18, 2011 - Italian media leak transcripts of wiretapped conversations with Karima El Mahroug, the alleged underage girl Berlusconi had sex with when she was 17, and with other women.
February 15, 2011 - An Italian judge rules that Berlusconi will be tried on charges of sex with an underage prostitute and abuse of power.
February 28, 2011 - Trial on charges of tax fraud resumes. Berlusconi is accused of reducing Mediaset's tax liabilities by purchasing U.S. movie rights at inflated prices and then creating illegal slush funds.
March 21, 2011 - The corruption trial against Berlusconi concerning David Mills resumes.
April 6, 2011 - The trial on having sex with an underage prostitute and abuse of power opens.
April 11, 2011 - The fraud trial resumes in Milan.
July 8, 2011 - Tells Italian daily newspaper, La Repubblica that he will not run again when his term expires in 2013.
September 1, 2011 - Businessman Gianpaolo Tarantini and his wife Angela Devenuto are arrested for allegedly blackmailing Berlusconi with information linked to a pending sex scandal accusation. An arrest warrant is also issued for Valter Lavitola.
September 16, 2011 - Prosecutors submit transcripts of approximately 100,000 wiretaps of Berlusconi, made in 2008 and 2009, to a court in Bari. The prosecutors have accused eight people of paying young women to attend parties at the Prime Minister's private home.
October 14, 2011 - Remains prime minister after a 316-301 vote of confidence in him and the Forza Italia Party.
October 18, 2011 - Is cleared of charges of tax fraud related to his commercial broadcast company, Mediaset. Company executives have been under investigation for allegedly failing to pay $45 million in corporate taxes and other fiscal crimes from 2000 to 2003.
November 8, 2011 - The office of Italian President Giorgio Napolitano announces that Berlusconi will resign when the country's budget is confirmed by the senate.
November 12, 2011 - Resigns from office.
November 22, 2011 - Singer Mariano Apicella releases a new album called "True Love." All the lyrics on the album were written by Berlusconi.
February 15, 2012 - Italian prosecutors ask for a five-year prison sentence if Berlusconi is found guilty of corruption charges.
February 25, 2012 - A judge dismisses the corruption case, ruling that the statute of limitations has expired.