July 31

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The July 31 is the 212th day of the Gregorian calendar (the 213th in leap years ), thus remain 153 days by year end.

Historic anniversaries
June · July · August
1 2 3 4th 5 6th 7th
8th 9 10 11 12th 13th 14th
15th 16 17th 18th 19th 20th 21
22nd 23 24 25th 26 27 28
29 30th 31


Politics and world events

Columbus' third voyage 1498–1500
1667: New Netherlands
1917: Third Battle of Flanders
1941: Goering's order


1752: Giraffe enclosure in Schönbrunn Zoo

science and technology

1815: Brunton's Mechanical Traveler
1901: The Preussen gas balloon is filled
  • 1901: The German meteorologists Arthur Berson and Reinhard Süring reach the world record height of 10,800 meters in the Preussen gas balloon . Their temperature measurements pave the way for the discovery of the stratosphere in 1902.
  • 1906: On the night of August 1st, the first scientific observations are carried out from the newly opened Ondřejov observatory (in today's Czech Republic ).
  • 1919: The Berlin – New York radio link opens
  • 1931: After a week, the rigid airship LZ 127 Graf Zeppelin returns to Friedrichshafen from its successful polar voyage under the direction of Hugo Eckener .
  • 1964: Ranger 7 lands hard on the moon as planned and shatters, but can still send the first 4,000 photographs from the moon to earth beforehand.
  • 1969: The Mariner 6 space probe photographs Mars as it flies by and sends the images to Earth within a few minutes.
  • 1999: The US space probe Lunar Prospector , whose mission was to detect water on the moon, hits the moon - as intended - after providing data on the moon for almost 19 months. However, the impact fails to release ice.



  • 1970: On Black Tot Day , British navies were given rum as part of their ration for the last time. This is the end of a 315 year old tradition.


431: Cyril of Alexandria
1826: Presentation of the Inquisition by Goya


Minor accidents are listed in the sub-articles of Disaster .


Entries of track and field world records can be found under the respective discipline under track and field .


Before the 18th century

18th century

19th century



20th century






Before the 17th century

17th century

18th century

19th century

20th century



21st century

Holidays and memorial days

The list of days of remembrance and action contains further entries .

Commons : July 31st  - Collection of images, videos and audio files