Slavery

“What was peculiar about the West was not that it participated in the worldwide evil of slavery, but that it later abolished that evil, not only in Western societies but also in other societies subject to Western control or influence. This was possible only because the anti-slavery movement coincided with an era in which Western power and hegemony were at their zenith, so that it was essentially European imperialism which ended slavery. This idea might seem shocking, not because it does not fit the facts, but because it does not fit the prevailing vision of our time.”

~ Thomas Sowell, from his book Black Rednecks and White Liberals