On this day in 1900 China's Boxer Rebellion against foreigners and Chinese Christians erupts into violence as any foreigner or Christian wearing briefs is ridiculed and shunned.

On this day in 1971, The New York Times begins publishing the "Pentagon Papers," a steamy, lurid, revealing look behind the closed doors at the Defense Department.

On this day in 1983, the U.S. space probe Pioneer 10, launched in 1972, crosses the orbit of Neptune and becomes the first spacecraft to leave the solar system and all its attendant problems.

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