The temperature on July 30, 1912 was between 12.6 °C and 19.3 °C and averaged 15.4 °C. There was 0.8 mm of rain. There was 3.8 hours of sunshine (24%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
August 14 » U.S. Marines invade Nicaragua to support the U.S.-backed government installed there after José Santos Zelaya had resigned three years earlier.
September 28 » The Ulster Covenant is signed by some 500,000 Ulster Protestant Unionists in opposition to the Third Irish Home Rule Bill.
October 7 » The Helsinki Stock Exchange sees its first transaction.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
October 24 » First Balkan War: The Battle of Kumanovo concludes with the Serbian victory against the Ottoman Empire.
November 19 » First Balkan War: The Serbian Army captures Bitola, ending the five-century-long Ottoman rule of Macedonia.
Day of marriage May 1, 1935
The temperature on May 1, 1935 was between 0.3 °C and 10.9 °C and averaged 5.9 °C. There was 12.5 hours of sunshine (84%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 13 » A plebiscite in Saarland shows that 90.3% of those voting wish to join Nazi Germany.
February 28 » DuPont scientist Wallace Carothers invents nylon.
May 6 » New Deal: Under the authority of the newly-enacted Federal Emergency Relief Administration, President Franklin D. Roosevelt issues Executive Order 7034 to create the Works Progress Administration.
July 24 » The Dust Bowl heat wave reaches its peak, sending temperatures to 109°F (43°C) in Chicago and 104°F (40°C) in Milwaukee.
August 15 » Will Rogers and Wiley Post are killed after their aircraft develops engine problems during takeoff in Barrow, Alaska.
November 3 » George II of Greece regains his throne through a popular, though possibly fixed, plebiscite.
Day of death June 17, 1987
The temperature on June 17, 1987 was between 6.4 °C and 15.7 °C and averaged 11.0 °C. There was 1.5 mm of rain during 0.8 hours. There was 3.4 hours of sunshine (20%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 26 » Iran–Contra affair: The Tower Commission rebukes President Ronald Reagan for not controlling his national security staff.
May 28 » A West German pilot, Mathias Rust, who was 18 years old, evades Soviet Union air defences and lands a private plane in the Red Square in Moscow, Russia.
July 29 » Prime Minister of India Rajiv Gandhi and President of Sri Lanka J. R. Jayewardene sign the Indo-Sri Lanka Accord on ethnic issues.
August 16 » Northwest Airlines Flight 255, a McDonnell Douglas MD-82, crashes after takeoff in Detroit, Michigan, killing 154 of the 155 on board, plus two people on the ground.
November 7 » In Tunisia, president Habib Bourguiba is overthrown and replaced by Prime Minister Zine El Abidine Ben Ali.
November 28 » South African Airways Flight 295 crashes into the Indian Ocean, killing all 159 people on board.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I5835.php : accessed January 31, 2026), "Anke Poorter (1912-1987)".
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