The temperature on April 11, 1911 was between 0.9 °C and 11.9 °C and averaged 5.9 °C. There was 0.1 mm of rain. There was 9.1 hours of sunshine (67%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 18 » Russian Premier Pyotr Stolypin is shot at the Kiev Opera House.
September 24 » His Majesty's Airship No. 1, Britain's first rigid airship, is wrecked by strong winds before her maiden flight at Barrow-in-Furness.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
When copying data from this family tree, please include a reference to the origin: Mark Apeldoorn, "Mark Apeldoorn Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/mark-apeldoorn-family-tree/P243.php : accessed May 11, 2025), "Hendrik (Henk) Smit (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.