13 January IN THE HISTORY

1610  Galileo Galilei discovered Callisto, the fourth satellite of Jupiter.
	1888  The National Geographic Society was founded in Washington D.C.
	1893  The British Independent Labour Party was formed with Keir Hardie as its leader.
	1953  Marshal Josip Tito was chosen president of Yugoslavia.
	1958  Around 9000 scientists from 43 nations petitioned the United Nations for a nuclear test ban.
	1989  Computers across Britain were hit by the Friday the 13th virus.
	2001  A 7.6-Richter earthquake hit the Central American city of El Salvador killing about 1000 people.