21 March It Happened Today
1556 Archbishop of Canterbury Thomas Cranmer is burnt at the stake for heresy.
1685 Birth of German composer Johann Sebastian Bach.
1843 Death of English Poet Laureate Robert Southey.
1960 In the black township of Sharpeville near Johannesburg, 56 black people are killed and 162 wounded by police.
1963 Alcatraz prison in the bay of San Francisco closes.