The temperature on April 21, 1878 was about 16.9 °C. The air pressure was 1 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 60%. Source: KNMI
In The Netherlands , there was from November 3, 1877 to August 20, 1879 the cabinet Kappeijne van de Coppello, with Mr. J. Kappeijne van de Coppello (liberaal) as prime minister.
March 3 » The Russo-Turkish War ends with Bulgaria regaining its independence from the Ottoman Empire according to the Treaty of San Stefano.
September 1 » Emma Nutt becomes the world's first female telephone operator when she is recruited by Alexander Graham Bell to the Boston Telephone Dispatch Company.
September 3 » Over 640 die when the crowded pleasure boat Princess Alice collides with the Bywell Castle in the River Thames.
December 18 » The Al-Thani family become the rulers of the state of Qatar.
December 31 » Karl Benz, working in Mannheim, Germany, filed for a patent on his first reliable two-stroke gas engine, and he was granted the patent in 1879.
Day of marriage July 27, 1896
The temperature on July 27, 1896 was about 16.8 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 95%. Source: KNMI
May 26 » Charles Dow publishes the first edition of the Dow Jones Industrial Average.
May 27 » The F4-strength St. Louis–East St. Louis tornado hits in St. Louis, Missouri, and East St. Louis, Illinois, killing at least 255 people and causing over $10-million in damage.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
August 16 » Skookum Jim Mason, George Carmack and Dawson Charlie discover gold in a tributary of the Klondike River in Canada, setting off the Klondike Gold Rush.
August 30 » Philippine Revolution: After Spanish victory in the Battle of San Juan del Monte, eight provinces in the Philippines are declared under martial law by the Spanish Governor-General Ramón Blanco y Erenas.
December 30 » Canadian ice hockey player Ernie McLea scores the first hat-trick in Stanley Cup play, and the Cup-winning goal as the Montreal Victorias defeat the Winnipeg Victorias 6–5.
Day of death April 21, 1949
The temperature on April 21, 1949 was between 2.6 °C and 18.6 °C and averaged 11.6 °C. There was 1.0 mm of rain during 0.1 hours. There was 11.5 hours of sunshine (81%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
February 19 » Ezra Pound is awarded the first Bollingen Prize in poetry by the Bollingen Foundation and Yale University.
April 18 » The Republic of Ireland Act comes into effect.
May 6 » EDSAC, the first practical electronic digital stored-program computer, runs its first operation.
July 21 » The United States Senate ratifies the North Atlantic Treaty.
July 27 » Initial flight of the de Havilland Comet, the first jet-powered airliner.
November 3 » Chinese Civil War: The Battle of Dengbu Island occurs.
Day of burial April 26, 1949
The temperature on April 26, 1949 was between 3.1 °C and 12.6 °C and averaged 7.8 °C. There was 5.3 mm of rain during 2.3 hours. There was 4.1 hours of sunshine (28%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 3 » The Bangko Sentral ng Pilipinas, the central bank of the Philippines, is established.
February 14 » The Asbestos Strike begins in Canada. The strike marks the beginning of the Quiet Revolution in Quebec.
April 7 » The Rodgers and Hammerstein musical South Pacific opened on Broadway; it would run for 1,925 performances and win ten Tony Awards.
May 4 » The entire Torino football team (except for two players who did not take the trip: Sauro Tomà, due to an injury and Renato Gandolfi, because of coach request) is killed in a plane crash.
July 27 » Initial flight of the de Havilland Comet, the first jet-powered airliner.
August 3 » The Basketball Association of America and the National Basketball League finalize the merger that would create the National Basketball Association.
When copying data from this family tree, please include a reference to the origin: Wim Ackermans, "Family tree Ackermans", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ackermans/I314.php : accessed March 16, 2026), "Willemina Kropf (1878-1949)".
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