March 30th

• 240

  First recorded perihelion passage of Halley's Comet.

• 1858

  Pencil with attached eraser patented by Hyman L Lipman.

• 1867

  Alaska Purchase: US buys Alaska from Russia for $7.2 million. View Post →

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• 1981

  Ronald Reagan wounded in assassination attempt by John Hinckley.

• 1984

  World's most valuable tip leads to $6 million lottery win.

• 1987

  Van Gogh's 'Sunflowers' sells for a record 22.5 million pounds.

• 2001

  Michael Phelps breaks 200m butterfly world record at 15 years old.

• 2019

  PewDiePie overtaken by T-Series as YouTube's most subscribed channel.

• 2020

  2020 Summer Olympics postponed to 2021 due to COVID-19.

• 1964

  Jeopardy! airs for the first time.

• 1968

  Celine Dion, Canadian singer-songwriter, born.

• 1962

  MC Hammer, American rapper and actor, born.

• 1853

  Vincent van Gogh, Dutch painter, born.

• 1822

  Florida becomes a U.S. territory.

• 1870

  Texas readmitted to the Union.

• 1964

  John Glenn withdraws from Senate race due to injuries.

• 2002

  Unmanned U.S. spy plane crashes at sea in the Southern Philippines.