The temperature on December 28, 1868 was about 7.2 °C. There was 0.3 mm of rain. The air pressure was 12 kgf/m2 and came mainly from the west-southwest. The airpressure was 74 cm mercury. The atmospheric humidity was 57%. Source: KNMI
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).
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
January 3 » Meiji Restoration in Japan: The Tokugawa shogunate is abolished; agents of Satsuma and Chōshū seize power.
March 5 » Mefistofele, an opera by Arrigo Boito, receives its premiere performance at La Scala.
June 10 » Mihailo Obrenović III, Prince of Serbia is assassinated.
October 7 » Cornell University holds opening day ceremonies; initial student enrollment is 412, the highest at any American university to that date.
December 9 » The first traffic lights are installed, outside the Palace of Westminster in London. Resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.
December 10 » The first traffic lights are installed, outside the Palace of Westminster in London. Resembling railway signals, they use semaphore arms and are illuminated at night by red and green gas lamps.
Day of marriage April 29, 1902
The temperature on April 29, 1902 was between 1.4 °C and 11.3 °C and averaged 6.8 °C. There was 10.0 hours of sunshine (68%). Source: KNMI
January 1 » The first American college football bowl game, the Rose Bowl between Michigan and Stanford, is held in Pasadena, California.
January 30 » The first Anglo-Japanese Alliance is signed in London.
April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
May 20 » Cuba gains independence from the United States. Tomás Estrada Palma becomes the country's first President.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
December 14 » The Commercial Pacific Cable Company lays the first Pacific telegraph cable, from San Francisco to Honolulu.
Day of death May 29, 1949
The temperature on May 29, 1949 was between 6.5 °C and 15.3 °C and averaged 11.6 °C. There was 0.8 mm of rain during 0.7 hours. There was 2.5 hours of sunshine (15%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 5 » In his "State of the Union" address, United States President Harry S. Truman unveils his Fair Deal program.
March 30 » Cold War: A riot breaks out in Austurvöllur square in Reykjavík, when Iceland joins NATO.
April 1 » Chinese Civil War: The Chinese Communist Party holds unsuccessful peace talks with the Nationalist Party in Beijing, after three years of fighting.
April 7 » The Rodgers and Hammerstein musical South Pacific opened on Broadway; it would run for 1,925 performances and win ten Tony Awards.
October 1 » The People's Republic of China is established.
December 13 » The Knesset votes to move the capital of Israel to Jerusalem.
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/I54576.php : accessed March 16, 2026), "Harm Helder (1868-1949)".
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