emancipation

Short definition from Wiktionary

Noun

1. 1
   The act of setting free from the power of another, as from slavery, subjection, dependence, or controlling influence.
2. 2
   The state of being thus set free; liberation (used, for example, of slaves from bondage, of a person from prejudices, of the mind from superstition, of a nation from tyranny or subjugation).