What year was Napoleon was defeted?

Answer 1

The numbers played a major role in the defeat as they often do in combat. The Seventh Coalition fielded 30% more troops then the French had available. The attack began late because of the weather, but that problem was shared by both sides. Napoleon did not like the longer ranged rifle because of the slower rate of fire and Wellington did have more riflemen available, which gave him a slight advantage in both range and accuracy. Most historians place the key victory ingredient with the firmness and determination of the British Infantry who simply would not bend or break. That is a quality which is difficult to measure until it is observed and is most often instilled by long and skillful training.
The Seventh Coalition had overpowering strength, a better trained Army with lots of experience, a solid NCO Corps, some rifle equipped units, the choice of the battlefield anchored by UK troops who were determined to yield no ground to the French.

Answer 2

He was first defeated in 1814, and exiled to Elba, but he returned to France in 1815, and reinstalled his empire, but was again defeated that very year at the Battle of Waterloo, and exiled again (this time to St. Helena in the South Atlantic).

Answer 3

After the Battle of Waterloo (18 June 1815) he announced his resignation (24 June 1815 and went into exile at St. Helenea Islamd in the South Atlantic where he died of stomach cancer (5 May 1821).