Seven U.S. states are named after sovereigns - four kings and three queens.
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According to some estimates, Americans are sitting on $30 billion worth of unredeemed gift cards.
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In March, 2014, Colorado sold $19 million dollars worth of Cannabis. $1.9 million went to schools and crime fell by 10%.
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The United States consumes 25% of all the world's energy.
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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