These Are The Powerful Women Behind The World's Richest Men

Kate Greer

Greer is a designer and co-founder of Cheerie Lane, an artisanal popcorn company. She has been dating Jack Dorsey for the last four years. He is the CEO of the social media site, Twitter.

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The More You Know

  • The woolly mammoth survived until Egyptian times.
  • A single dollar bill costs 5 cents to make.
  • Stephen Hawking is 73 years old and has outlived his shortened life expectancy due to ALS by over 50 years.
  • Oxford University is older than the Aztec Empire.
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