Answer: death of Osama Bin Laden.
Explanation:
The event that was the cause of Celebration in 2011 was the death of Osama Bin Laden, at the hands of the US forces. The Afghan terrorist leader of the Al Qaeda network was finally killed. This event brought together thousands of people, most of them victims of the 2001 attack on the Twin Towers.
The crowd gathered at ground zero, where security measures were taken for precautionary reasons, in order to avoid a possible attack again.
William Pike accidentally accidentally got shot by his brother-in-law
World War II began 21 years after the end of World War I, but many historians believe that the two wars were part of one vast global conflict.
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Answer: Jews, Poles, Gypsies, and Soviet POWs.
Explanation:
It guarantees that every citizen maintains the right to free religion, assembly, press, petition, and speech (or RAPPS).