The Normans conquered Anglo-Saxon England in the year 1066. This marked one of the first and major changes of rule and supremacy in England that lasted well into the latter part of the millennium. <span />
It was the "B. Battle of Iwo Jima" that was one of the most devastating for U.S. Marine Corps, since this was a five-week-long battle waged by the US against the Japanese that was one of the bloodiest in the entire war.
The answer is technically false. All of these years are within the fifteenth century, except for 1401. The fifteenth century a.d. lasted from 1401 - 1500.