The date March 14th, or 3/14, is Pi Day in the U.S., so I thought I'd commemorate by sharing a brief history of one of the most important and frequently occurring numbers in mathematics.
http://www.billthelizard.com/2010/03/brief-history-of-pi.html
Ukraine sanctions 3 Chinese companies as tensions between Kyiv and Beijing
rise
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The sanctions mean the companies will not be able to do business with
Ukraine and any assets they have in the country will be frozen.
1 hour ago
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