The temperature on July 2, 1887 was about 19.5 °C. The air pressure was 1 kgf/m2 and came mainly from the north-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 75%. 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.
April 28 » A week after being arrested by the Prussian Secret Police, French police inspector Guillaume Schnaebelé is released on order of William I, German Emperor, defusing a possible war.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
November 11 » August Spies, Albert Parsons, Adolph Fischer and George Engel are executed as a result of the Haymarket affair.
November 13 » Bloody Sunday clashes in central London.
Day of death April 8, 1969
The temperature on April 8, 1969 was between 7.3 °C and 22.6 °C and averaged 14.2 °C. There was 10.8 hours of sunshine (81%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
July 20 » Apollo program: Apollo 11's crew successfully makes the first manned landing on the Moon in the Sea of Tranquility. Americans Neil Armstrong and Buzz Aldrin become the first humans to walk on the Moon six and a half hours later.
August 12 » Violence erupts after the Apprentice Boys of Derry march in Derry, Northern Ireland, resulting in a three-day communal riot known as the Battle of the Bogside.
August 13 » The Apollo 11 astronauts enjoy a ticker tape parade in New York City. That evening, at a state dinner in Los Angeles, they are awarded the Presidential Medal of Freedom by U.S. President Richard Nixon.
August 15 » The Woodstock Music & Art Fair opens in upstate New York, featuring some of the top rock musicians of the era.
November 14 » Apollo program: NASA launches Apollo 12, the second crewed mission to the surface of the Moon.
November 15 » Vietnam War: In Washington, D.C., 250,000-500,000 protesters staged a peaceful demonstration against the war, including a symbolic "March Against Death".
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/I175045.php : accessed December 24, 2025), "Jacob Heidema (1887-1969)".
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