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Births on April 11

William Wallace Campbell
1862Apr, 11

William Wallace Campbell

William Wallace Campbell, American astronomer and academic (d. 1938)
William Wallace Campbell (April 11, 1862 – June 14, 1938) was an American astronomer, and director of Lick Observatory from 1901 to 1930. He specialized in spectroscopy. He was the tenth president of the University of California from 1923 to 1930.

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Events on 1862

  • 30Jan

    USS Monitor

    The first American ironclad warship, the USS Monitor is launched.
  • 31Jan

    White dwarf

    Alvan Graham Clark discovers the white dwarf star Sirius B, a companion of Sirius, through an 18.5-inch (47 cm) telescope now located at Northwestern University.
  • 13Mar

    Emancipation Proclamation

    American Civil War: The U.S. federal government forbids all Union army officers from returning fugitive slaves, thus effectively annulling the Fugitive Slave Act of 1850 and setting the stage for the Emancipation Proclamation.
  • 15May

    Abraham Lincoln

    President Abraham Lincoln signs a bill into law creating the United States Bureau of Agriculture. It is later renamed the United States Department of Agriculture.
  • 17Aug

    Dakota War of 1862

    American Indian Wars: The Dakota War of 1862 begins in Minnesota as Lakota warriors attack white settlements along the Minnesota River.