1488 Ulrich von Hutten, German poet/humanist/patriot was born on this day in history.
1546 Arcangelo Crivelli, composer was born on April - 21.
1555 Ludovico Carracci, Italian painter (d. 1619) was born on April - 21.
1619 On April - 21 birth of john A van Riebeeck, colonial director/founder (Cape Colony)
1651 Blessed Joseph Vaz, Apostle of Ceylon (d. 1711) was born on this day in history.
1652 On April - 21 birth of michel Rolle, French mathematician (d. 1719)
1671 On April - 21 birth of john Law, Scottish economist (d. 1729)
1672 On this day in history birth of johann Philipp Kafer, composer
1073 Alexander II, [Anselmo da Baggio], Pope (1061-73), dies on April - 21.
1109 On this day in history anselmus, philosopher/archbishop of Canterbury, dies
1142 On April - 21 death of pierre Abélard, French writer (b. 1079)
1329 Death of Frederick IV, Duke of Lorraine (b. 1282) on April - 21.
1509 Henry VII, 1st Tudor king of England (1485-1509), dies at 52 on April - 21.
1551 Death of Oda Nobuhide, Japanese warlord (b. 1510) on this day in history.
1552 Peter Apianus, [Bennewitz/Bienewitz], German astronomer, dies at 50 on April - 21.
1557 Death of Petrus Apianus, German mathematician (b. 1495) on April - 21.