The temperature on May 4, 1911 was between 4.5 °C and 14.7 °C and averaged 10.0 °C. There was 9.5 mm of rain. There was 7.7 hours of sunshine (51%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 26 » Glenn Curtiss flies the first successful American seaplane.
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
December 24 » Lackawanna Cut-Off railway line opens in New Jersey and Pennsylvania.
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