The temperature on August 4, 1887 was about 18.6 °C. The air pressure was 8 kgf/m2 and came mainly from the northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 60%. 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.
January 20 » The United States Senate allows the Navy to lease Pearl Harbor as a naval base.
February 2 » In Punxsutawney, Pennsylvania the first Groundhog Day is observed.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
July 4 » The founder of Pakistan, Quaid-i-Azam Muhammad Ali Jinnah, joins Sindh-Madrasa-tul-Islam, Karachi.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
October 1 » Balochistan is conquered by the British Empire.
Day of marriage April 25, 1912
The temperature on April 25, 1912 was between 6.3 °C and 19.2 °C and averaged 12.5 °C. There was 12.6 hours of sunshine (87%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
March 6 » Italo-Turkish War: Italian forces become the first to use airships in war, as two dirigibles drop bombs on Turkish troops encamped at Janzur, from an altitude of 6,000 feet.
April 14 » The British passenger liner RMSTitanic hits an iceberg in the North Atlantic at 23:40 (sinks morning of April 15th).
May 18 » The first Indian film, Shree Pundalik by Dadasaheb Torne, is released in Mumbai.
August 6 » The Bull Moose Party meets at the Chicago Coliseum.
September 25 » Columbia University Graduate School of Journalism is founded in New York City.
December 3 » Bulgaria, Greece, Montenegro, and Serbia (the Balkan League) sign an armistice with the Ottoman Empire, temporarily halting the First Balkan War. (The armistice will expire on February 3, 1913, and hostilities will resume.)
Day of death September 9, 1968
The temperature on September 9, 1968 was between 9.5 °C and 23.1 °C and averaged 16.9 °C. There was 7.2 hours of sunshine (55%). The almost cloudless was. The average windspeed was 1 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
July 17 » Abdul Rahman Arif is overthrown and the Ba'ath Party is installed as the governing power in Iraq with Ahmed Hassan al-Bakr as the new Iraqi President.
July 26 » Vietnam War: South Vietnamese opposition leader Trương Đình Dzu is sentenced to five years hard labor for advocating the formation of a coalition government as a way to move toward an end to the war.
August 20 » Cold War: Warsaw Pact troops invade Czechoslovakia, crushing the Prague Spring. East German participation is limited to a few specialists due to memories of the recent war. Only Albania and Romania refuse to participate.
October 11 » NASA launches Apollo 7, the first successful manned Apollo mission.
October 22 » Apollo program: Apollo 7 safely splashes down in the Atlantic Ocean after orbiting the Earth 163 times.
November 11 » Vietnam War: Operation Commando Hunt initiated. The goal is to interdict men and supplies on the Ho Chi Minh trail, through Laos into South Vietnam.
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/I209407.php : accessed December 28, 2025), "Klaas Albert Bolt (1887-1968)".
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