1998 - Dismisses his deputy Anwar Ibrahim and accuses him of sodomy and corruption.
June 2002 - Announces his resignation.
October 16, 2003 - At a 57-nation Islamic summit in Malaysia, Mahathir claims in a speech that Jews "rule the world by proxy. They get others to fight and die for them."
October 31, 2003 - Mahathir retires and passes the prime ministership to his deputy, Abdullah Ahmad Badawi.
September 2007 - Has heart bypass surgery following two heart attacks within 10 months.
May 16, 2008 - The Malaysian government announces it has begun an investigation into corruption by the Mahathir administration in the 1980s and 1990s.
May 19, 2008 - Mahathir resigns from the United Malays National Organization, the ruling party of Malaysia.