Feudalism allowed large territories to be governed in the absence of a central government. Each lord or vassal raised an army to defend his fief and to serve the king as needed. One drawback to this system was that the nobles were very powerful because they controlled the armies.
American Revolutionary war
Prior to his appointment as head of the Continental Army, Washington had never commanded a large army in the field. Washington’s smallpox inoculation program was one of his best decisions of the war. Washington deftly put down a growing military rebellion. Washington’s greatest display of power was his surrender of power
The answer is D this calendar is called the Julian calendar.