What is the crucible in marine corps boot camp?

Explanation:

The Crucible is a test every recruit must go through to become a Marine. It tests every recruit physically, mentally and morally and is the defining experience of recruit training. The Crucible takes place over 54-hours and includes food and sleep deprivation and over 45 miles of marching.

- "sack of constantinople, (april 1204). the diversion of the fourth crusade from the holy land to attack, capture, and pillage the byzantine city of constantinople divided and dissipated the efforts of the christians to maintain the war against the muslims. the fourth crusade was corrupted from its purpose early on."

- "the crusades were a series of religious wars undertaken by the latin church. the first crusade arose after a call to arms in 1095 sermons by pope urban ii. the first crusade unleashed a wave of impassioned, pious catholic fury, which was of constantinople, the capital of the christian-controlled byzantine empire."

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answer; i had to look this up and the only one i found was(last only 15 minutes) plz check first and good luck;