The temperature on April 19, 1886 was about 18.6 °C. The air pressure was 10 kgf/m2 and came mainly from the east-northeast. The airpressure was 75 cm mercury. The atmospheric humidity was 55%. 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.
March 29 » John Pemberton brews the first batch of Coca-Cola in a backyard in Atlanta.
May 4 » Haymarket affair: A bomb is thrown at policemen trying to break up a labor rally in Chicago, United States, killing eight and wounding 60. The police fire into the crowd.
May 5 » The Bay View massacre: A militia fires into a crowd of protesters in Milwaukee, killing seven.
June 13 » A fire devastates much of Vancouver, British Columbia.
June 30 » The first transcontinental train trip across Canada departs from Montreal, Quebec. It arrives in Port Moody, British Columbia on July 4.
July 3 » Karl Benz officially unveils the Benz Patent-Motorwagen, the first purpose-built automobile.
Day of marriage January 23, 1912
The temperature on January 23, 1912 was between 0.6 °C and 3.3 °C and averaged 2.0 °C. There was 2.6 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
January 23 » The International Opium Convention is signed at The Hague.
May 4 » Italy occupies the Greek island of Rhodes.
May 18 » The first Indian film, Shree Pundalik by Dadasaheb Torne, is released in Mumbai.
June 4 » Massachusetts becomes the first state of the United States to set a minimum wage.
October 7 » The Helsinki Stock Exchange sees its first transaction.
Day of death January 23, 1969
The temperature on January 23, 1969 was between 4.1 °C and 8.0 °C and averaged 6.3 °C. There was 3.3 hours of sunshine (38%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
February 4 » Yasser Arafat takes over as chairman of the Palestine Liberation Organization.
March 17 » Golda Meir becomes the first female Prime Minister of Israel.
July 30 » Vietnam War: US President Richard Nixon makes an unscheduled visit to South Vietnam and meets with President Nguyễn Văn Thiệu and U.S. military commanders.
November 19 » Association football player Pelé scores his 1,000th goal.
November 20 » Vietnam War: The Plain Dealer (Cleveland, Ohio) publishes explicit photographs of dead villagers from the My Lai Massacre in Vietnam.
December 24 » Nigerian troops capture Umuahia, the Biafran capital.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I99002.php : accessed February 17, 2026), "Petrus Cornelis van Opstal (1886-1969)".
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