January 21 » Sweden and Prussia sign the Treaty of Stockholm.
February 29 » Ulrika Eleonora, Queen of Sweden abdicates in favour of her husband, who becomes King Frederick I on March 24.
March 24 » Count Frederick of Hesse-Kassel is elected King of Sweden by the Riksdag of the Estates, after his consort Ulrika Eleonora abdicated the throne on 29 February
August 14 » The Spanish military Villasur expedition is wiped out by Pawnee and Otoe warriors near present-day Columbus, Nebraska.
October 20 » Caribbean pirate Calico Jack is captured by the Royal Navy.
November 9 » The synagogue of Judah HeHasid is burned down by Arab creditors, leading to the expulsion of the Ashkenazim from Jerusalem.
Day of marriage January 21, 1753
The temperature on January 21, 1753 was about -1.0 °C. Wind direction mainly southwest. Weather type: sneeuw zeer betrokken. Source: KNMI
February 17 » In Sweden February 17 is followed by March 1 as the country moves from the Julian calendar to the Gregorian calendar.
May 1 » Publication of Species Plantarum by Linnaeus, and the formal start date of plant taxonomy adopted by the International Code of Botanical Nomenclature.
Day of death June 20, 1770
The temperature on June 20, 1770 was about 14.0 °C. There was 26 mm of rainWind direction mainly north-northwest. Weather type: donder regen. Source: KNMI
April 19 » Captain James Cook, still holding the rank of lieutenant, sights the eastern coast of what is now Australia.
April 19 » Marie Antoinette marries Louis XVI of France in a proxy wedding.
April 29 » James Cook arrives in Australia at Botany Bay, which he names.
June 11 » British explorer Captain James Cook runs aground on the Great Barrier Reef.
June 19 » New Church Day: Emanuel Swedenborg writes: "The Lord sent forth His twelve disciples, who followed Him in the world into the whole spiritual world to preach the Gospel that the Lord God Jesus Christ reign. This took place on the 19th day of June, in the year 1770."
August 22 » James Cook names and lands on Possession Island, and claims the east coast of Australia for Britain as New South Wales.
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/I40448.php : accessed February 18, 2026), "Hendrik Willem (Olffen) Olssen (-1770)".
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.