The Chinese government calling an event the "Peaceful Liberation of Tibet" doesn't negate many others in the world calling the same event the "Chinese invasion of Tibet".
Rinse, Repeat.
It was also 1950. And what never gets brought up is that the Chinese invasion ended the practice of slavery in Tibet. Yes, slavery. They called it "serfdom" but these "serfs" could be bought and sold, you know, like property, like slaves.
When exactly has this been "rinse. repeated"ed since?