Inventor Phillip W Pratt obtained the patent for his sprinkler system designed to extinguish fires.
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During the Senate climate crisis task force, climate change activity Greta Thunberg said, 'You're not trying hard enough. Sorry.'
The fourth great fire of San Francisco happened, destroying a considerable portion of the city.
Finnish long-distance runner Taisto Mäki broke the 10,000-meter world record in 29:52:06.
The Dutch expedition captained by Admiral Van Warwyck first sighted Mauritius.
German-British astronomer William Herschel discovered the moon of Saturn, 'Mimas.'