Today in History- 1st February

International Events:
Year Event
1924 The United Kingdom recognizes the USSR.
1946 Trygve Lie chosen as the first secretary-general of the United Nations.
1979 Religious leader Ayatollah Khomeini return to Iran after 15 years in exile.
2003 Indian-born astronaut Kalpana Chawla killed in the Space Shuttle Columbia disaster.
2003 US space shuttle Columbia disintegrates killing all seven astronauts.
2009 Johanna Sigurdardottir elected as Iceland's first female prime minister.