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Welcome to the 127th Daily Field Note! Here you find the top post of the day, one covering each scientific field that is included by Geopolis. Since these authors put a lot of effort in writing a good post they surely deserve the extra exposure.

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History: Of Mongols, Nomads and the Great Eurasian Steppe

Original post by @agmoore

On November 28, 1240, the residents of Kiev huddled behind its fortifications. Outside the city, 20,000 Mongol warriors mustered. An ultimatum was issued: open the gates. Inside, stories circulated about other cities that had fallen and had been burned to the ground. The ultimatum was defied and a siege began.

Six days passed. The walls of the city were breached. The Mongols swarmed in and slaughtered 30,000 of Kiev's 50,000 inhabitants. With the fall of Kiev, the path to a Mongol invasion of Europe was open...

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