The temperature on July 18, 1873 was about 23.2 °C. There was 0.1 mm of rain. The air pressure was 9 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 65%. Source: KNMI
From July 6, 1872 till August 27, 1874 the Netherlands had a cabinet De Vries - Fransen van de Putte with the prime ministers Mr. G. de Vries Azn. (liberaal) and I.D. Fransen van de Putte (liberaal).
January 17 » A group of Modoc warriors defeats the United States Army in the First Battle of the Stronghold, part of the Modoc War.
March 22 » The Spanish National Assembly abolishes slavery in Puerto Rico.
May 20 » Levi Strauss and Jacob Davis receive a U.S. patent for blue jeans with copper rivets.
August 4 » American Indian Wars: While protecting a railroad survey party in Montana, the United States 7th Cavalry, under Lieutenant Colonel George Armstrong Custer clashes for the first time with the Cheyenne and Lakota people near the Tongue River; only one man on each side is killed.
September 1 » Cetshwayo ascends to the throne as king of the Zulu nation following the death of his father Mpande.
October 3 » Chief Kintpuash and companions are hanged for their part in the Modoc War of northern California.
Day of marriage May 4, 1895
The temperature on May 4, 1895 was about 11.5 °C. The airpressure was 77 cm mercury. The atmospheric humidity was 61%. Source: KNMI
January 12 » The National Trust is founded in the United Kingdom.
April 6 » Oscar Wilde is arrested in the Cadogan Hotel, London, after losing a libel case against the Marquess of Queensberry.
April 17 » The Treaty of Shimonoseki between China and Japan is signed. This marks the end of the First Sino-Japanese War, and the defeated Qing Empire is forced to renounce its claims on Korea and to concede the southern portion of the Fengtien province, Taiwan and the Pescadores Islands to Japan.
April 24 » Joshua Slocum, the first person to sail single-handedly around the world, sets sail from Boston, Massachusetts aboard the sloop "Spray".
September 18 » The Atlanta Exposition Speech on race relations is delivered by Booker T. Washington.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of death March 17, 1950
The temperature on March 17, 1950 was between 8.1 °C and 11.2 °C and averaged 9.7 °C. There was 12.4 mm of rain during 9.1 hours. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-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).
May 13 » The first round of the Formula One World Championship is held at Silverstone.
May 19 » A barge containing munitions destined for Pakistan explodes in the harbor at South Amboy, New Jersey, devastating the city.
June 1 » The Chinchaga fire ignites. By September, it would become the largest single fire on record in North America.
June 24 » Apartheid: In South Africa, the Group Areas Act is passed, formally segregating races.
October 19 » Iran becomes the first country to accept technical assistance from the United States under the Point Four Program.
October 19 » Korean War: The Battle of Pyongyang ends in a United Nations victory. Hours later, the Chinese Army begins crossing the border into Korea.
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/I156808.php : accessed October 18, 2026), "Roelof Hamersma (1873-1950)".
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.