About the day » Sunday April 15, 1781Calender converter

• Antje van der Keijl, Katwijk aan Zee († 1827)
• Adriana Jansdr de Haan, Ridderkerk († 1783)
• Arij Pietersz van QUAWEGEN, Ridderkerk,,PAYS BAS
• Annetje Nahum, Epe († 1785)
• Aaltjen Boterman, Lochem († 1857)
• Anna van Deursen, Maasbree († 1825)
• Anna van Deursen, Maasbree († 1825)
• Aaltjen Harmsen, Voorst (Ge), Gelderland, Nederland
• Arij den Oude, Hoogvliet († 1784)
• Aagje van Willigen, Waddinxveen († 1789)

• Jakobus Jurjens Pool (86), Drachterstercompagnie
• Joanna Vinck (74), De Klinge
• Jacob Japik Hendriksz XX Kuyper, EaZ
• Jean-Baptiste Lefebvre dit Boulanger (72), Saint-Michel-de-Bellechasse, Bellechasse, Québec, Canada
• David Zirkzee (1)
• Johann Reichelderfer (0), Albany Twp, Berks, Pennsylvania, Verenigde Staten
• Johann Herf (26), Breitenau, Hessen-Nassau, Duitsland
• "Constance" Simone Flore Gabrielle Rouault de Gamaches (56), Paris
• Joanna Dierickx (36), Wieze
• Garrigje Gijsberts van Zwieten (8), Leersum

• 1741 » Charles Willson Peale, American painter and soldier († 1827)
• 1771 » Nicolas Chopin, French-Polish educator († 1844)
• 1772 » Étienne Geoffroy Saint-Hilaire, French biologist and zoologist († 1844)
• 1793 » Friedrich Georg Wilhelm von Struve, German astronomer and academic († 1864)
• 1795 » Maria Schicklgruber, mother of Alois Hitler and the paternal grandmother of Adolf Hitler (d.1847)
• 1800 » James Clark Ross, English captain and explorer († 1862)
• 1808 » William Champ, English-Australian politician, 1st Premier of Tasmania († 1892)
• 1809 » Hermann Grassmann, German linguist and mathematician († 1877)
• 1817 » William Crowther, Dutch-Australian politician, 14th Premier of Tasmania († 1885)
• 1828 » Jean Danjou, French captain († 1863)

• 1719 » Françoise d'Aubigné, Marquise de Maintenon, French wife of Louis XIV of France (b. 1635)
• 1754 » Jacopo Riccati, Italian mathematician and academic (b. 1676)
• 1761 » Archibald Campbell, 3rd Duke of Argyll, Scottish lawyer and politician, Lord President of the Court of Session (b. 1682)
• 1761 » William Oldys, English historian and author (b. 1696)
• 1764 » Peder Horrebow, Danish astronomer and mathematician (b. 1679)
• 1765 » Mikhail Lomonosov, Russian chemist and physicist (b. 1711)
• 1788 » Giuseppe Bonno, Austrian composer (b. 1711)
• 1793 » Ignacije Szentmartony, Croatian priest, mathematician, and astronomer (b. 1718)
• 1854 » Arthur Aikin, English chemist and mineralogist (b. 1773)
• 1861 » Sylvester Jordan, Austrian-German lawyer and politician (b. 1792)

1. Jan
2. Johannes
3. Pieter
4. Joannes
5. Hendrik
6. Cornelis
7. Willem
8. Jacob
9. Gerrit
10. Petrus
11. Jean
12. Jacobus
13. Dirk
14. Klaas
15. John
16. Adrianus

1. Maria
2. Anna
3. Johanna
4. Cornelia
5. Marie
6. Joanna
7. Elisabeth
8. Catharina
9. Trijntje
10. Adriana
11. Neeltje
12. Grietje
13. Antje
14. Elizabeth
15. Aaltje
16. Jannetje

• Erfstadhouder Prins Willem V (Willem Batavus) (Huis van Oranje-Nassau) was from 1751 till 1795 sovereign of the Netherlands (also known as Republiek der Zeven Verenigde Nederlanden)
• February 3 » American Revolutionary War: British forces seize the Dutch-owned Caribbean island Sint Eustatius.
• February 18 » Fourth Anglo-Dutch War: Captain Thomas Shirley opens his expedition against Dutch colonial outposts on the Gold Coast of Africa (present-day Ghana).
• March 1 » The Articles of Confederation goes into effect in the United States.
• March 15 » American Revolutionary War: Battle of Guilford Court House: Near present-day Greensboro, North Carolina, 1,900 British troops under General Charles Cornwallis defeat a mixed American force numbering 4,400 in a Pyrrhic victory.
• August 24 » American Revolutionary War: A small force of Pennsylvania militia is ambushed and overwhelmed by an American Indian group, which forces George Rogers Clark to abandon his attempt to attack Detroit.
• September 4 » Los Angeles is founded as El Pueblo de Nuestra Señora La Reina de los Ángeles (The Village of Our Lady, the Queen of the Angels) by 44 Spanish settlers.

The temperature on April 15, 1781 was about 9.0 °C. Wind direction mainly north-northwest. Weather type: omtrent helder.