World Cancer Day
960 – The coronation of Zhao Kuangyin as Emperor Taizu of Song, initiating the Song Dynasty period of China that would last more than three centuries.
1789 – George Washington is unanimously elected as the first President of the United States by the U.S. Electoral College.
1948 – Ceylon (later renamed Sri Lanka) becomes independent within the British Commonwealth.
1969 – Yasser Arafat takes over as chairman of the Palestine Liberation Organization.
2003 – The Bengali Hindus declares the independence of the Republic of Bangabhumi from Bangladesh.
2003 – The Federal Republic of Yugoslavia is officially renamed Serbia and Montenegro and adopts a new constitution.
2004 – Facebook, a mainstream online social networking site, is founded by Mark Zuckerberg.
4 February Knowledge History - Science, Engineering and Management
4 February - Day in History of India and Importance