The temperature on May 25, 1911 was between 11.3 °C and 22.0 °C and averaged 16.3 °C. There was 6.4 hours of sunshine (40%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
May 23 » The New York Public Library is dedicated.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
When copying data from this family tree, please include a reference to the origin: J. Ackerman, "Family tree Ackerman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ackerman/I244.php : accessed December 30, 2025), "theresia sofia Ackerman (1911-)".
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