Today is Monday, April 1, the 91st day of 2013. There are 274 days left in the year.
1578 ― William Harvey of England discovers blood circulation
1748 ― Ruins of Pompeii found
1792 ― Gronings feminist Etta Palm demands women’s right to divorce
1935 ― First radio tube made of metal announced, Schenectady, N.Y.
1952 ― “Big Bang” theory proposed in Physical Review by Alpher, Bethe and Gamow
1966 ― Chinese Premier Zhou Enlai starts “Cultural revolution”
1976 ― Stephen Wozniak & Steven Jobs originate Apple Computer
1979 ― Iran proclaimed an Islamic Republic following fall of Shah
1980 ― Wayne Gretzky breaks Bobby Orr’s record with 103rd assist
1982 ― U.S. formally transfers Canal Zone to Panama