The temperature on September 21, 1888 was about 12.7 °C. The air pressure was 4 kgf/m2 and came mainly from the east-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 80%. 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.
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
May 12 » In Southeast Asia, the North Borneo Chartered Company's territories become the British protectorate of North Borneo.
May 16 » Nikola Tesla delivers a lecture describing the equipment which will allow efficient generation and use of alternating currents to transmit electric power over long distances.
August 5 » Bertha Benz drives from Mannheim to Pforzheim and back in the first long distance automobile trip, commemorated as the Bertha Benz Memorial Route since 2008.
August 21 » The first successful adding machine in the United States is patented by William Seward Burroughs.
September 30 » Jack the Ripper kills his third and fourth victims, Elizabeth Stride and Catherine Eddowes.
October 29 » The Convention of Constantinople is signed, guaranteeing free maritime passage through the Suez Canal during war and peace.
Day of death December 1, 1969
The temperature on December 1, 1969 was between -1.2 °C and 1.0 °C and averaged -0.1 °C. There was 0.8 mm of rain during 1.1 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 17 » Black Panther Party members Bunchy Carter and John Huggins are killed during a meeting in Campbell Hall on the campus of UCLA.
March 25 » During their honeymoon, John Lennon and Yoko Ono hold their first Bed-In for Peace at the Amsterdam Hilton Hotel (until March 31).
May 10 » Vietnam War: The Battle of Dong Ap Bia begins with an assault on Hill 937. It will ultimately become known as Hamburger Hill.
May 20 » The Battle of Hamburger Hill in Vietnam ends.
August 9 » Followers of Charles Manson murder pregnant actress Sharon Tate (wife of Roman Polanski), coffee heiress Abigail Folger, Polish actor Wojciech Frykowski, men's hairstylist Jay Sebring and recent high-school graduate Steven Parent.
September 1 » Trần Thiện Khiêm becomes Prime Minister of South Vietnam under President Nguyễn Văn Thiệu.
When copying data from this family tree, please include a reference to the origin: Hein Kersten, "Family tree Kersten", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kersten/I37.php : accessed February 22, 2026), "Johan BONHOF (1888-1969)".
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.