Family tree Van den Berg/van der Werf » Jacobus Gerardus Andreas Koeleman (1911-)

Birthday April 20, 1911

• The temperature on April 20, 1911 was between 4.0 °C and 15.8 °C and averaged 9.7 °C. There was 11.7 hours of sunshine (82%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
• Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
• In the year 1911: Source: Wikipedia
  • The Netherlands had about 6.0 million citizens.
  • March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
  • April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
  • June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
  • August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
  • November 1 » World's first combat aerial bombing mission takes place in Libya during the Italo-Turkish War. Second Lieutenant Giulio Gavotti of Italy drops several small bombs.
  • November 11 » Many cities in the Midwestern United States break their record highs and lows on the same day as a strong cold front rolls through.

Source: Wikipedia

• 1908 » Lionel Hampton, American vibraphone player, pianist, bandleader, and actor († 2002)
• 1910 » Fatin Rüştü Zorlu, Turkish diplomat and politician († 1961)
• 1913 » Mimis Fotopoulos, Greek actor and poet († 1986)
• 1913 » Roger Rochard, French runner († 1993)
• 1913 » Willi Hennig, German biologist and entomologist († 1976)
• 1914 » Betty Lou Gerson, American actress († 1999)