The temperature on March 21, 1886 was about 9.1 °C. There was 4 mm of rain. The air pressure was 10 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 98%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
February 23 » Charles Martin Hall produced the first samples of aluminium from the electrolysis of aluminium oxide, after several years of intensive work. He was assisted in this project by his older sister, Julia Brainerd Hall.
March 29 » John Pemberton brews the first batch of Coca-Cola in a backyard in Atlanta.
April 8 » William Ewart Gladstone introduces the first Irish Home Rule Bill into the British House of Commons.
May 1 » Rallies are held throughout the United States demanding the eight-hour work day, culminating in the Haymarket affair in Chicago, in commemoration of which May 1 is celebrated as International Workers' Day in many countries.
June 13 » A fire devastates much of Vancouver, British Columbia.
November 30 » The Folies Bergère stages its first revue.
Day of marriage September 5, 1908
The temperature on September 5, 1908 was between 5.6 °C and 17.0 °C and averaged 11.6 °C. There was 8.5 hours of sunshine (63%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
January 15 » The Alpha Kappa Alpha sorority becomes the first Greek-letter organization founded and established by African American college women.
February 1 » Lisbon Regicide: King Carlos I of Portugal and Infante Luis Filipe are shot dead in Lisbon.
April 8 » Harvard University votes to establish the Harvard Business School.
April 20 » Opening day of competition in the New South Wales Rugby League.
May 10 » Mother's Day is observed for the first time in the United States, in Grafton, West Virginia.
June 27 » A group of Vietnamese tirailleurs conducts a failed attempt to poison the entire French army's garrison in the Hanoi Citadel with the aim to make way for Hoàng Hoa Thám's rebel army to capture Hanoi.
Day of death December 31, 1967
The temperature on December 31, 1967 was between -0.8 °C and 2.8 °C and averaged 0.6 °C. There was 12.5 mm of rain during 5.9 hours. There was 0.6 hours of sunshine (8%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
February 13 » American researchers discover the Madrid Codices by Leonardo da Vinci in the National Library of Spain.
March 7 » The Majelis Permusyawaratan Rakyat Sementara (MPRS), Indonesia's provisional parliament, revoked Sukarno's mandate as President of Indonesia.
June 5 » The Six-Day War begins: Israel launches surprise strikes against Egyptian air-fields in response to the mobilisation of Egyptian forces on the Israeli border.
June 12 » The United States Supreme Court in Loving v. Virginia declares all U.S. state laws which prohibit interracial marriage to be unconstitutional.
July 6 » Nigerian Civil War: Nigerian forces invade Biafra, beginning the war.
November 29 » Vietnam War: U.S. Secretary of Defense Robert McNamara announces his resignation.
When copying data from this family tree, please include a reference to the origin: RJF Einhaus, "Protzman family genealogy", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-protzman/I77.php : accessed February 25, 2026), "Hendrika Zwak (1886-1967)".
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