Chanting 'IRS has got to go,' tea party protesters rally in Cincinnati over agency's scrutiny
Former IRS chief says he doesn't know why conservative groups were targeted
Poll says teens sharing more on social media sites, trending more to Twitter
Scientists: Unlike hurricanes and nor'easters, tornadoes show no clear link to global warming
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Amelia Earhart became the first woman to fly solo across the Atlantic Ocean as she landed in Northern Ireland, about 15 hours after leaving Newfoundland.
King Henry VI of England died in the Tower of London at age 49.
Spanish explorer Hernando de Soto died while searching for gold along the Mississippi River.