FRIDAY, APRIL 1, 2011

Today is Friday, April 1, the 91st day of 2011. There are 274 days left in the year.

1578 ― William Harvey of England discovers blood circulation

1748 ― Ruins of Pompeii found

1778 ― Oliver Pollock, a New Orleans businessman, creates ``$” symbol

1793 ― Volcano Unsen on Japan erupts killing about 53,000

1826 ― Samuel Mory patents internal combustion engine

1866 ― U.S. Congress rejects presidential veto gives all equal rights in U.S.

1933 ― Nazi Germany begins persecution of Jews boycotting Jewish businesses

1938 ― Baseball Hall of Fame opens in Cooperstown, N.Y.

1952 ― Big Bang theory proposed in Physical Review by Alpher, Bethe and Gamow

1974 ― Ayatollah Khomeini calls for an Islamic Republic