The temperature on July 4, 1886 was about 15.9 °C. The air pressure was 1 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 83%. 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.
February 23 » Charles Martin Hall produced the first samples of aluminium from the electrolysis of aluminium oxide, after several years of intensive work. He was assisted in this project by his older sister, Julia Brainerd Hall.
May 1 » Rallies are held throughout the United States demanding the eight-hour work day, culminating in the Haymarket affair in Chicago, in commemoration of which May 1 is celebrated as International Workers' Day in many countries.
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 29 » The pharmacist John Pemberton places his first advertisement for Coca-Cola, which appeared in The Atlanta Journal.
July 3 » Karl Benz officially unveils the Benz Patent-Motorwagen, the first purpose-built automobile.
November 30 » The Folies Bergère stages its first revue.
Day of death May 20, 1973
The temperature on May 20, 1973 was between 12.0 °C and 20.1 °C and averaged 15.6 °C. There was 5.3 mm of rain during 4.3 hours. There was 8.3 hours of sunshine (52%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 7 » In his second shooting spree of the week, Mark Essex fatally shoots seven people and wounds five others at Howard Johnson's Hotel in New Orleans, Louisiana, before being shot to death by police officers.
January 8 » Soviet space mission Luna 21 is launched.
May 18 » Aeroflot Flight 109 is hijacked mid-flight and the aircraft is subsequently destroyed when the hijacker's bomb explodes, killing all 82 people on board.
June 3 » A Soviet supersonic Tupolev Tu-144 crashes near Goussainville, France, killing 14, the first crash of a supersonic passenger aircraft.
August 9 » Mars 7 is launched from the USSR.
December 24 » District of Columbia Home Rule Act is passed, allowing residents of Washington, D.C. to elect their own local government.
When copying data from this family tree, please include a reference to the origin: Arie Verloop, "Family tree Verloop", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-verloop/I8799.php : accessed October 24, 2026), "Johannis Nicolaas VERLOOP (1886-1973)".
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