320 - Pappus of Alexandria, Greek philosopher, observes an eclipse of the sun and writes a commentary on The Great Astronomer (Almagest).
1386 - Opening of the University of Heidelberg
1867 - US takes formal possession of Alaska from Russia ($7.2 million)
1954 - Hurricane Hazel (3rd of 1954) becomes most severe to hit US
1967 - Soviet Venera 4 becomes 1st probe to send data back from Venus
Azerbaijan National Independence Day
