About the day » Monday July 20, 1891Calender converter

• Agatha Driessen, Rekem, Limburg, Belgium († 1891)
• Adriana Cornelia Boere, Vierpolders, Zuid-Holland, Netherlands († 1960)
• Adriana Klinkhamer, Leiden
• Adriana Maria van Ginneken, Zundert
• Albertus Adolf de Winter, Utrecht, Utrecht, Utrecht, Nederland († 1941)
• Agina Maria Kok, Stadskanaal (Onstwedde, Groningen) († 1893)
• Adriana-Maria Van Ginneken, Zundert, Nederland († 1964)
• Alberta Gerhardina Lebuina Olthof, Deventer († 1941)
• Albert Taal, Den Helder († 1961)
• Albertus Nieboer, Leiderdorp († 1897)

• Antje Wiarda (0), Bozum (Baarderadeel)
• Onnes willimina (5), scheveningen
• Adrianus Lambertus van Ginneken (0), Oudenbosch
• Anna Cornelia Vinck (2), Loenhout, Antwerpen, België
• Arend van den Berg (68), Maasland, Nederland
• Anje Pieterman (0), Uithuizermeeden, Groningen, Nederland
• Arend Harmens Nolles (52), Noordwolde, Friesland, Nederland
• Adriana SNOEREN (76), Oosterhout
• Agnes CLAES (66), Achel,Provincie Limburg,Flanders,Belgie
• Anna Helena van den Bergh, Meester Cornelis, Java, Indonesië

• 1882 » Olga Hahn-Neurath, Austrian mathematician and philosopher († 1937)
• 1889 » John Reith, 1st Baron Reith, Scottish broadcaster, co-founded BBC († 1971)
• 1890 » Giorgio Morandi, Italian painter († 1964)
• 1890 » Julie Vinter Hansen, Danish-Swiss astronomer and academic († 1960)
• 1890 » Verna Felton, American actress († 1966)
• 1893 » George Llewelyn Davies, English soldier († 1915)
• 1895 » László Moholy-Nagy, Hungarian painter, photographer, and sculptor († 1946)
• 1897 » Tadeusz Reichstein, Polish-Swiss chemist and academic, Nobel Prize laureate († 1996)
• 1900 » Maurice Leyland, English cricketer and coach († 1967)
• 1901 » Vehbi Koç, Turkish businessman and philanthropist, founded Koç Holding († 1996)

• 1866 » Bernhard Riemann, German mathematician and academic (b. 1826)
• 1897 » Jean Ingelow, English poet and author (b. 1820)
• 1901 » William Cosmo Monkhouse, English poet and critic (b. 1840)
• 1903 » Leo XIII, pope of the Catholic Church (b. 1810)
• 1908 » Demetrius Vikelas, Greek businessman and author (b. 1835)
• 1908 » Karl Bernhard Zoeppritz, German geophysicist and seismologist (b. 1881)
• 1910 » Anderson Dawson, Australian politician, 14th Premier of Queensland (b. 1863)
• 1922 » Andrey Markov, Russian mathematician and theorist (b. 1856)
• 1923 » Pancho Villa, Mexican general and politician, Governor of Chihuahua (b. 1878)
• 1926 » Felix Dzerzhinsky, Russian educator and politician (b. 1877)

1. Johannes
2. Jan
3. Hendrik
4. Cornelis
5. Willem
6. Pieter
7. Gerrit
8. Jacob
9. Petrus
10. Jacobus
11. Adrianus
12. Arie
13. Dirk
14. Hendrikus
15. Gerardus
16. Wilhelmus

1. Maria
2. Johanna
3. Anna
4. Cornelia
5. Elisabeth
6. Hendrika
7. Catharina
8. Wilhelmina
9. Adriana
10. Aaltje
11. Grietje
12. Neeltje
13. Jacoba
14. Geertruida
15. Trijntje
16. Petronella

• Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• Regentes Emma (Huis van Oranje-Nassau) was from 1890 till 1898 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
• In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
• The Netherlands had about 5.1 million citizens.
• February 15 » Allmänna Idrottsklubben (AIK) (Swedish Sports Club) is founded.
• May 15 » Pope Leo XIII defends workers' rights and property rights in the encyclical Rerum novarum, the beginning of modern Catholic social teaching.
• May 20 » History of cinema: The first public display of Thomas Edison's prototype kinetoscope.
• October 1 » Stanford University opens its doors in California, United States.
• October 28 » The Mino–Owari earthquake is the largest inland earthquake in Japan's history.
• December 22 » Asteroid 323 Brucia becomes the first asteroid discovered using photography.

The temperature on July 20, 1891 was about 20.7 °C. The air pressure was 2 kgf/m² and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 63%.