April 30 in history: • 313 – Civil wars of the Tetrarchy: An outnumbered army led by Roman emperor Licinius defeated his rival Maximinus II's forces at the Battle of Tzirallum. → go there • 1006 – SN 1006, the brightest supernova in recorded history, first appeared in the constellation Lupus. → go there • 1789 – George Washington (pictured) took the oath of office as the first president of the United States at Federal Hall in New York City. → go there • 1927 – Douglas Fairbanks and Mary Pickford became the first two celebrities to make imprints of their hands and feet in cement at Grauman's Chinese Theatre in Hollywood, California. → go there • 1994 – Riverdance was performed for the first time, as the interval act for the Eurovision Song Contest. → go there • 2014 – A bomb blast in Ürümqi, China, killed three people and injured 79 others. → go there Died 783: Hildegard Wiki link Born 1926: Cloris Leachman Wiki link Born 1976: Victor Glover Wiki link Pictured: George Washington.