The temperature on January 17, 1874 was about 5.7 °C. The air pressure was 4 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 78%. Source: KNMI
From July 6, 1872 till August 27, 1874 the Netherlands had a cabinet De Vries - Fransen van de Putte with the prime ministers Mr. G. de Vries Azn. (liberaal) and I.D. Fransen van de Putte (liberaal).
From August 27, 1874 till November 3, 1877 the Netherlands had a cabinet Heemskerk - Van Lijnden van Sandenburg with the prime ministers Mr. J. Heemskerk Azn. (conservatief) and Mr. C.Th. baron Van Lijnden van Sandenburg (AR).
March 15 » France and Vietnam sign the Second Treaty of Saigon, further recognizing the full sovereignty of France over Cochinchina.
May 9 » The first horsebus makes its début in the city of Mumbai, traveling two routes.
May 27 » The first group of Dorsland trekkers under the leadership of Gert Alberts leaves Pretoria.
June 29 » Greek politician Charilaos Trikoupis publishes a manifesto in the Athens daily Kairoi entitled "Who's to Blame?" leveling complaints against King George. Trikoupis is elected Prime Minister of Greece the next year.
July 14 » The Chicago Fire of 1874 burns down 47 acres of the city, destroying 812 buildings, killing 20, and resulting in the fire insurance industry demanding municipal reforms from Chicago's city council.
October 9 » The Universal Postal Union is created by the Treaty of Bern.
Day of marriage May 21, 1898
The temperature on May 21, 1898 was about 14.1 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 75%. Source: KNMI
January 1 » New York, New York annexes land from surrounding counties, creating the City of Greater New York. The four initial boroughs, Manhattan, Brooklyn, Queens, and The Bronx, are joined on January 25 by Staten Island to create the modern city of five boroughs.
February 27 » King George I of Greece survives an assassination attempt.
June 17 » The United States Navy Hospital Corps is established.
September 10 » Empress Elisabeth of Austria is assassinated by Luigi Lucheni.
October 18 » The United States takes possession of Puerto Rico from Spain.
November 3 » France withdraws its troops from Fashoda (now in Sudan), ending the Fashoda Incident.
Day of death March 14, 1960
The temperature on March 14, 1960 was between 4.6 °C and 17.0 °C and averaged 10.3 °C. There was 1.8 mm of rain during 1.7 hours. There was 7.2 hours of sunshine (61%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
January 1 » Cameroon achieves independence from France and the United Kingdom.
January 21 » Little Joe 1B, a Mercury spacecraft, lifts off from Wallops Island, Virginia with Miss Sam, a female rhesus monkey on board.
February 13 » Black college students stage the first of the Nashville sit-ins at three lunch counters in Nashville, Tennessee.
February 26 » A New York-bound Alitalia airliner crashes into a cemetery in Shannon, Ireland, shortly after takeoff, killing 34 of the 52 persons on board.
November 9 » Robert McNamara is named president of Ford Motor Company, the first non-Ford to serve in that post. A month later, he resigned to join the administration of newly elected John F. Kennedy.
November 28 » Mauritania becomes independent of France.
Day of burial March 18, 1960
The temperature on March 18, 1960 was between 1.7 °C and 3.4 °C and averaged 2.4 °C. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
April 4 » France agrees to grant independence to the Mali Federation, a union of Senegal and French Sudan.
June 26 » Madagascar gains its independence from France.
July 20 » Ceylon (now Sri Lanka) elects Sirimavo Bandaranaike Prime Minister, the world's first elected female head of government.
August 5 » Burkina Faso, then known as Upper Volta, becomes independent from France.
August 9 » South Kasai secedes from the Congo.
August 16 » Joseph Kittinger parachutes from a balloon over New Mexico at 102,800 feet (31,300m), setting three records that held until 2012: High-altitude jump, free fall, and highest speed by a human without an aircraft.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I89245.php : accessed January 20, 2026), "Willem Potze (1874-1960)".
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