The temperature on July 18, 1873 was about 23.2 °C. There was 0.1 mm of rain. The air pressure was 9 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. 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).
February 18 » Bulgarian revolutionary leader Vasil Levski is executed by hanging in Sofia by the Ottoman authorities.
April 1 » The White Star steamer RMSAtlantic sinks off Nova Scotia, killing 547 in one of the worst marine disasters of the 19th century.
April 4 » The Kennel Club is founded, the oldest and first official registry of purebred dogs in the world.
May 9 » Der Krach: Vienna stock market crash heralds the Long Depression.
July 1 » Prince Edward Island joins into Canadian Confederation.
August 4 » American Indian Wars: While protecting a railroad survey party in Montana, the United States 7th Cavalry, under Lieutenant Colonel George Armstrong Custer clashes for the first time with the Cheyenne and Lakota people near the Tongue River; only one man on each side is killed.
Day of marriage May 4, 1895
The temperature on May 4, 1895 was about 11.5 °C. The airpressure was 77 cm mercury. The atmospheric humidity was 61%. Source: KNMI
January 5 » Dreyfus affair: French army officer Alfred Dreyfus is stripped of his rank and sentenced to life imprisonment on Devil's Island.
February 24 » Revolution breaks out in Baire, a town near Santiago de Cuba, beginning the Cuban War of Independence, that ends with the Spanish–American War in 1898.
March 19 » Auguste and Louis Lumière record their first footage using their newly patented cinematograph.
April 24 » Joshua Slocum, the first person to sail single-handedly around the world, sets sail from Boston, Massachusetts aboard the sloop "Spray".
May 7 » In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day.
September 3 » John Brallier becomes the first openly professional American football player, when he was paid US$10 by David Berry, to play for the Latrobe Athletic Association in a 12-0 win over the Jeanette Athletic Association.
Day of death March 17, 1950
The temperature on March 17, 1950 was between 8.1 °C and 11.2 °C and averaged 9.7 °C. There was 12.4 mm of rain during 9.1 hours. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. 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 5 » In the Sverdlovsk air disaster, all 19 of those on board are killed, including almost the entire national ice hockey team (VVS Moscow) of the Soviet Air Force – 11 players, as well as a team doctor and a masseur.
March 12 » The Llandow air disaster kills 80 people when the aircraft they are travelling in crashes near Sigingstone, Wales. At the time this was the world's deadliest air disaster.
May 19 » A barge containing munitions destined for Pakistan explodes in the harbor at South Amboy, New Jersey, devastating the city.
May 29 » The St. Roch, the first ship to circumnavigate North America, arrives in Halifax, Nova Scotia, Canada.
June 3 » Herzog and Lachenal of the French Annapurna expedition become the first climbers to reach the summit of an 8,000-metre peak.
October 16 » The Lion, the Witch and the Wardrobe by C.S. Lewis is published.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I156808.php : accessed October 20, 2026), "Roelof Hamersma (1873-1950)".
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