Conquest (noun)

1. The act of conquering a place or people.
2. The subjugation and assumption of control of a place or people by military force.
3. A thing that has been successfully achieved, especially by means of force or conquest.

Origin:

From old french conquest, based on latin conquirere ('to acquire, gain').

Examples:

1. The Norman conquest of England in 1066 is a famous event in history.
2. The conquest of the New World by European powers was a major historical event.
3. The athlete's conquest of the world record was a remarkable achievement.