The temperature on February 20, 1912 was between 6.1 °C and 7.9 °C and averaged 6.9 °C. There was 7.1 mm of rain. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. Source: KNMI
January 6 » German geophysicist Alfred Wegener first presents his theory of continental drift.
January 8 » The African National Congress is founded, under the name South African Native National Congress (SANNC).
April 15 » The British passenger liner RMSTitanic sinks in the North Atlantic at 2:20a.m., two hours and forty minutes after hitting an iceberg. Only 710 of 2,227 passengers and crew on board survive.
May 8 » Paramount Pictures is founded.
October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.
October 19 » Italo-Turkish War: Italy takes possession of what is now Libya from the Ottoman Empire.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I458136.php : accessed March 17, 2026), "Fredrika "Rinie" Letteboer (1912-)".
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.