The temperature on January 8, 1866 was about 8.7 °C. There was 0.6 mm of rain. The air pressure was 40 kgf/m2 and came mainly from the southwest. The airpressure was 74 cm mercury. The atmospheric humidity was 70%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
April 4 » Alexander II of Russia narrowly escapes an assassination attempt by Dmitry Karakozov in the city of Saint Petersburg.
April 8 » Italy and Prussia ally against the Austrian Empire.
May 2 » Peruvian defenders fight off the Spanish fleet at the Battle of Callao.
July 20 » Austro-Prussian War: Battle of Lissa: The Austrian Navy, led by Admiral Wilhelm von Tegetthoff, defeats the Italian Navy near the island of Vis in the Adriatic Sea.
October 19 » In accordance with the Treaty of Vienna, Austria cedes Veneto and Mantua to France, which immediately awards them to Italy in exchange for the earlier Italian acquiescence to the French annexation of Savoy and Nice.
October 22 » A plebiscite ratifies the annexion of Veneto and Mantua to Italy, which had occurred three days before, on October 19.
Day of marriage December 11, 1889
The temperature on December 11, 1889 was about 1.9 °C. There was 0.1 mm of rain. The airpressure was 75 cm mercury. The atmospheric humidity was 96%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
May 11 » An attack upon a U.S. Army paymaster and escort results in the theft of over $28,000 and the award of two Medals of Honor.
July 11 » Tijuana, Mexico, is founded.
November 15 » Brazil is declared a republic by Marshal Deodoro da Fonseca as Emperor Pedro II is deposed in a military coup.
Day of death June 11, 1960
The temperature on June 11, 1960 was between 10.2 °C and 16.2 °C and averaged 13.6 °C. There was 0.3 mm of rain during 0.3 hours. The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
April 21 » Brasília, Brazil's capital, is officially inaugurated. At 09:30, the Three Powers of the Republic are simultaneously transferred from the old capital, Rio de Janeiro.
April 25 » The United States Navy submarine USSTriton completes the first submerged circumnavigation of the globe.
June 19 » The first NASCAR race was held at Charlotte Motor Speedway.
July 12 » Orlyonok, the main Young Pioneer camp of the Russian SFSR, is founded.
October 4 » An airliner crashes on takeoff from Boston's Logan International Airport, killing 62 people.
November 4 » At the Kasakela Chimpanzee Community in Tanzania, Dr. Jane Goodall observes chimpanzees creating tools, the first-ever observation in non-human animals.
Day of burial June 15, 1960
The temperature on June 15, 1960 was between 6.6 °C and 20.1 °C and averaged 13.3 °C. There was 2.6 mm of rain during 1.1 hours. There was 9.9 hours of sunshine (59%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 1 » Cameroon achieves independence from France and the United Kingdom.
May 13 » Hundreds of University of California, Berkeley students congregate for the first day of protest against a visit by the House Committee on Un-American Activities.
May 24 » Following the 1960 Valdivia earthquake, the largest ever recorded earthquake, Cordón Caulle begins to erupt.
September 5 » Muhammad Ali (then known as Cassius Clay) wins the gold medal in the light heavyweight boxing competition at the Olympic Games in Rome.
September 18 » Fidel Castro arrives in New York City as the head of the Cuban delegation to the United Nations.
November 14 » Ruby Bridges becomes the first black child to attend an all-white elementary school in Louisiana.
When copying data from this family tree, please include a reference to the origin: Hans van Ekelenburg, "Family tree Van Roon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-roon/I5.php : accessed March 6, 2026), "Hendrik "Hein" van Roon (1866-1960)".
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