The temperature on August 26, 1868 was about 18.7 °C. The air pressure was 6 kgf/m2 and came mainly from the southwest. The airpressure was 77 cm mercury. The atmospheric humidity was 58%. 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).
March 5 » Mefistofele, an opera by Arrigo Boito, receives its premiere performance at La Scala.
March 8 » Sakai incident: Japanese samurai kill 11 French sailors in the port of Sakai, Osaka.
April 7 » Thomas D'Arcy McGee, one of the Canadian Fathers of Confederation, is assassinated by a Fenian activist.
August 18 » French astronomer Pierre Janssen discovers helium.
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 May 18, 1893
The temperature on May 18, 1893 was about 18.0 °C. There was 3 mm of rain. The airpressure was 75 cm mercury. The atmospheric humidity was 80%. Source: KNMI
In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
January 6 » The Washington National Cathedral is chartered by Congress. The charter is signed by President Benjamin Harrison.
June 5 » The trial of Lizzie Borden for the murder of her father and step-mother begins in New Bedford, Massachusetts.
July 9 » Daniel Hale Williams, American heart surgeon, performs the first successful open-heart surgery in United States without anesthesia.
October 28 » Tchaikovsky's Symphony No. 6 in B Minor, Pathétique receives its première performance only nine days before the composer's death.
November 7 » Women's suffrage: Women in the U.S. state of Colorado are granted the right to vote, the second state to do so.
November 12 » Abdur Rahman Khan accepts the Durand Line as the border between Afghanistan and the British Raj.
Day of death June 30, 1940
The temperature on June 30, 1940 was between 11.5 °C and 25.6 °C and averaged 18.4 °C. There was 10.8 hours of sunshine (65%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 13 » World War II: Germany's conquest of France begins as the German army crosses the Meuse. Winston Churchill makes his "blood, toil, tears, and sweat" speech to the House of Commons.
May 14 » World War II: Rotterdam, Netherlands is bombed by the Luftwaffe of Nazi Germany despite a ceasefire, killing about 900 people and destroying the historic city center.
May 24 » Igor Sikorsky performs the first successful single-rotor helicopter flight.
July 19 » World War II: Army order 112 forms the Intelligence Corps of the British Army.
September 14 » Ip massacre: The Hungarian Army, supported by local Hungarians, kill 158 Romanian civilians in Ip, Sălaj, a village in Northern Transylvania, an act of ethnic cleansing.
November 9 » Warsaw is awarded the Virtuti Militari.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I156863.php : accessed October 23, 2026), "Roelof Raap (1868-1940)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.