The temperature on July 19, 1878 was about 24.5 °C. The air pressure was 2 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 64%. Source: KNMI
In The Netherlands , there was from November 3, 1877 to August 20, 1879 the cabinet Kappeijne van de Coppello, with Mr. J. Kappeijne van de Coppello (liberaal) as prime minister.
January 16 » Russo-Turkish War (1877–78): Battle of Philippopolis: Captain Aleksandr Burago with a squadron of Russian Imperial army dragoons liberates Plovdiv from Ottoman rule.
February 18 » John Tunstall is murdered by outlaw Jesse Evans, sparking the Lincoln County War in Lincoln County, New Mexico.
February 21 » The first telephone directory is issued in New Haven, Connecticut.
March 15 » Restoration of the Scottish Catholic hierarchy, broken off back in 1603.
May 25 » Gilbert and Sullivan's comic opera H.M.S. Pinafore opens at the Opera Comique in London.
Day of marriage March 1, 1902
The temperature on March 1, 1902 was between 0.8 °C and 9.4 °C and averaged 4.8 °C. Source: KNMI
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
May 8 » In Martinique, Mount Pelée erupts, destroying the town of Saint-Pierre and killing over 30,000 people. Only a handful of residents survive the blast.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
June 24 » King Edward VII of the United Kingdom develops appendicitis, delaying his coronation.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
November 29 » The Pittsburgh Stars defeated the Philadelphia Athletics, 11–0 to win the first championship associated with an American national professional football league.
Day of death February 7, 1962
The temperature on February 7, 1962 was between 5.2 °C and 8.5 °C and averaged 7.4 °C. There was 3.5 mm of rain during 3.9 hours. The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 8 » Charonne massacre. Nine trade unionists are killed by French police at the instigation of Nazi collaborator Maurice Papon, then chief of the Paris Prefecture of Police.
February 16 » Flooding in the coastal areas of West Germany kills 315 and destroys the homes of about 60,000 people.
July 6 » As a part of Operation Plowshare, the Sedan nuclear test takes place.
August 16 » Pete Best is discharged from The Beatles, to be replaced two days later by Ringo Starr.
September 27 » The Yemen Arab Republic is established.
October 11 » The Second Vatican Council becomes the first ecumenical council of the Roman Catholic Church in 92 years.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I55015.php : accessed February 18, 2026), "Johan Gerhard Heller (1878-1962)".
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