About the day » Tuesday March 30, 1920Calender converter

• adolf gerardus maria (dolf) sevens, neerkant († 2004)
• Antonia Elisabeth Boere, Montfoort, Utrecht, Nederland († 1977)
• Barbara (Bep) van der Linden, Rotterdam († 2011)
• Alice Eveline Sickler, Ringle, Marathon County, Wisconsin, Verenigde Staten († 2012)
• Annie M. Hermans, Brunssum († 2004)
• Annechien Wijnholds, Emmen, Drenthe, Nederland († 1996)
• Albert Van der Linden, Stekene († 2013)
• Ansems, Westelbeers
• Annechien Wijnholds, Barger-Compascuum, Emmen († 1996)
• Adriana Maria van Geel († 1970)

• Andreas Bartholomeus Apolonius van Holstein (25), 's-Gravenzande
• Arthur P. Card (58)
• Andreas Bartholemeus Apolonius van Holstein (25), Naaldwijk, Nederland
• Andreas Bartholomeus Apolonius van Holsteijn (25), 's-Gravenzande, Westland, Zuid-Holland, Nederland
• Asse Visscher (1), Nieuwleusen, Ov, The Netherlands
• Albertje Eshuis (70), Hoogeveen, Drenthe, The Netherlands
• Anna Margreta Elisabeth Wenker (4), Ane
• Antje Spa (82)
• Bartholomeus Godefridus ♂ Balm (45), Haarlem, Noord-Holland, Nederland
• Aaldert Jannes Slot (57), Weststellingwerf, Friesland, Nederland

• 1914 » Sonny Boy Williamson I, American singer-songwriter and harmonica player († 1948)
• 1915 » Pietro Ingrao, Italian journalist and politician († 2015)
• 1917 » Els Aarne, Ukrainian-Estonian pianist, composer, and educator († 1995)
• 1919 » McGeorge Bundy, American intelligence officer and diplomat, 6th United States National Security Advisor († 1996)
• 1919 » Robin M. Williams, New Zealand mathematician and academic († 2013)
• 1921 » André Fontaine, French historian and journalist († 2013)
• 1922 » Arthur Wightman, American physicist and academic († 2013)
• 1922 » Turhan Bey, American actor († 2012)
• 1923 » Milton Acorn, Canadian poet and playwright († 1986)
• 1926 » Ingvar Kamprad, Swedish businessman, founded IKEA († 2018)

• 1896 » Charilaos Trikoupis, Greek politician, 55th Prime Minister of Greece (b. 1832)
• 1912 » Karl May, German author (b. 1842)
• 1925 » Rudolf Steiner, Austrian philosopher and author (b. 1861)
• 1935 » Romanos Melikian, Armenian composer (b. 1883)
• 1936 » Conchita Supervía, Spanish soprano and actress (b. 1895)
• 1940 » Sir John Gilmour, 2nd Baronet Scottish soldier and politician, Secretary of State for Scotland (b. 1876)
• 1943 » Jan Bytnar, Polish lieutenant; WWII resistance fighter (b. 1921)
• 1943 » Maciej Aleksy Dawidowski, Polish sergeant; WWII resistance fighter (b. 1920)
• 1945 » Béla Balogh, Hungarian actor, director, and screenwriter (b. 1885)
• 1949 » Friedrich Bergius, German chemist and academic, Nobel Prize laureate (b. 1884)

• Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
• The Netherlands had about 6.8 million citizens.
• January 17 » Alcohol Prohibition begins in the United States as the Volstead Act goes into effect.
• February 14 » The League of Women Voters is founded in Chicago.
• February 24 » The Nazi Party (NSDAP) was founded by Adolf Hitler in the Hofbräuhaus beer hall in Munich, Germany
• August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
• August 13 » Polish–Soviet War: The Battle of Warsaw begins and will last till August 25. The Red Army is defeated.
• December 22 » The GOELRO economic development plan is adopted by the 8th Congress of Soviets of the Russian SFSR.

The temperature on March 30, 1920 was between 8.9 °C and 18.2 °C and averaged 13.1 °C. There was 8.9 hours of sunshine (70%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south east.