September 20, 1784
September 20, 1803
Robert Emmet (1778-1803) was a member of the United Irishmen and refused to accept the Act of Union (1801) between Great Britain and Ireland.
September 20, 1842
September 20, 1847
September 20, 1911
September 20, 1918
September 20, 1920
September 20, 1958
Construction of the Forth Road Bridge in Scotland began on September 20, 1958
September 20, 1967
September 20, 1972