In 1806, U.S. explorers Meriwether Lewis and William Clark returned to St. Louis on their historic journey from the Mississippi River to the Pacific Coast and back.
In 1846, German astronomer Johann Gottfried Galle discovered the planet Neptune at the Berlin Observatory. Neptune generally is the eighth planet from the sun.
In 1966, a Rolling Stones' concert at England's Royal Albert concert hall was halted temporarily when screaming girls attacked Mick Jagger onstage. The riotous enthusiasm of the fans resulted in a ban of pop concerts at the hall.
In 1973, Juan Peron was again elected president of Argentina after 18 years in exile. His second wife, Isabel, who became vice president, and succeeded him after he died 10 months later.
In 2010, the U.S. Congress enacted the Small Business Jobs and Credit Act, a multibillion-dollar package of tax breaks and government loans to aid small businesses. President Barack Obama signed the bill into law four days later.
In 2014, U.S. President Barack Obama, speaking at a U.N. Climate Summit, warned of the "urgent and growing threat of climate change." Obama said countries such as the United States and China must lead the way in efforts to reduce pollution. "We have a responsibility to lead," Obama said. "That's what big nations have to do."
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