The temperature on January 23, 1911 was between -2.1 °C and 0.4 °C and averaged -0.3 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of death August 3, 1911
The temperature on August 3, 1911 was between 13.6 °C and 23.8 °C and averaged 19.0 °C. There was 3.5 hours of sunshine (23%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 14 » Roald Amundsen's South Pole expedition makes landfall on the eastern edge of the Ross Ice Shelf.
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
November 19 » The Doom Bar in Cornwall claimed two ships, Island Maid and Angele, the latter killing the entire crew except the captain.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
When copying data from this family tree, please include a reference to the origin: Martin Brederoo, "Genealogy Brederoo", database, Genealogy Online (https://www.genealogieonline.nl/test-brederoo/I6920528.php : accessed January 29, 2026), "Willem Zonneveld (1911-1911)".
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.