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Births on January 12

Johan August Arfwedson
1792Jan, 12

Johan August Arfwedson

Johan August Arfwedson, Swedish chemist and academic (d. 1841)
Johan August Arfwedson (12 January 1792 – 28 October 1841) was a Swedish chemist who discovered the chemical element lithium in 1817 by isolating it as a salt.

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Events on 1792

  • 20Feb

    United States Postal Service

    The Postal Service Act, establishing the United States Post Office Department, is signed by United States President George Washington.
  • 5Apr

    Veto

    United States President George Washington exercises his authority to veto a bill, the first time this power is used in the United States.
  • 20Apr

    French Revolutionary Wars

    France declares war against the "King of Hungary and Bohemia", the beginning of French Revolutionary Wars.
  • 21Apr

    Hanged, drawn and quartered

    Tiradentes, a revolutionary leading a movement for Brazil's independence, is hanged, drawn and quartered.
  • 28Apr

    French Revolutionary Wars

    France invades the Austrian Netherlands (present day Belgium and Luxembourg), beginning the French Revolutionary Wars.