The temperature on August 4, 1861 was about 20.3 °C. There was 0.1 mm of rain. The air pressure was 13 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 73%. Source: KNMI
From February 23, 1860 till March 14, 1861 the Netherlands had a cabinet Van Hall - Van Heemstra with the prime ministers Mr. F.A. baron Van Hall (conservatief-liberaal) and Mr. S. baron Van Heemstra (liberaal).
From March 14, 1861 till January 31, 1862 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Loudon with the prime ministers Mr. J.P.P. baron Van Zuijlen van Nijevelt (conservatief-liberaal) and Mr. J. Loudon (liberaal).
January 29 » Kansas is admitted as the 34th U.S. state.
February 10 » Jefferson Davis is notified by telegraph that he has been chosen as provisional President of the Confederate States of America.
February 18 » In Montgomery, Alabama, Jefferson Davis is inaugurated as the provisional President of the Confederate States of America.
March 3 » Alexander II of Russia signs the Emancipation Manifesto, freeing serfs.
April 15 » President Abraham Lincoln calls for 75,000 Volunteers to quell the insurrection that soon became the American Civil War.
July 16 » American Civil War: At the order of President Abraham Lincoln, Union troops begin a 25-mile march into Virginia for what will become the First Battle of Bull Run, the first major land battle of the war.
Day of death June 30, 1904
The temperature on June 30, 1904 was between 5.1 °C and 22.6 °C and averaged 14.9 °C. There was 14.0 hours of sunshine (84%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
February 7 » A fire begins in Baltimore, Maryland; it destroys over 1,500 buildings in 30 hours.
February 22 » The United Kingdom sells a meteorological station on the South Orkney Islands to Argentina; the islands are subsequently claimed by the United Kingdom in 1908.
May 5 » Pitching against the Philadelphia Athletics at the Huntington Avenue Grounds, Cy Young of the Boston Americans throws the first perfect game in the modern era of baseball.
May 21 » The Fédération Internationale de Football Association (FIFA) is founded in Paris.
August 23 » The automobile tire chain is patented.
December 7 » Comparative fuel trials begin between warships HMSSpiteful and HMSPeterel: Spiteful was the first warship powered solely by fuel oil, and the trials led to the obsolescence of coal in ships of the Royal Navy.
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/I14388.php : accessed October 17, 2026), "Roel Merkus (1861-1904)".
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