June 25 » Venetian Elena Cornaro Piscopia is the first woman awarded a doctorate of philosophy when she graduates from the University of Padua.
August 3 » Robert LaSalle builds the Le Griffon, the first known ship built on the Great Lakes.
November 25 » Trunajaya rebellion: After a long and logistically challenging march, the allied Mataram and Dutch troops successfully assaulted the rebel stronghold of Kediri.
January 26 » The 8.7–9.2 Mw Cascadia earthquake takes place off the west coast of North America, as evidenced by Japanese records.
February 27 » The island of New Britain is discovered by Europeans.
February 28 » Today is followed by March 1 in Sweden, thus creating the Swedish calendar.
March 1 » Sweden introduces its own Swedish calendar, in an attempt to gradually merge into the Gregorian calendar, reverts to the Julian calendar on this date in 1712, and introduces the Gregorian calendar on this date in 1753.
Day of burial April 20, 1729
The temperature on April 20, 1729 was about -6.0 °C. Wind direction mainly north-northeast. Weather type: omtrent helder. Special wheather fenomena: winderig. Source: KNMI
November 9 » Spain, France and Great Britain sign the Treaty of Seville.
November 29 » Natchez Indians massacre 138 Frenchmen, 35 French women, and 56 children at Fort Rosalie, near the site of modern-day Natchez, Mississippi.
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/I39770.php : accessed February 15, 2026), "Annigjen Jansen Hilbrands (-1729)".
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.