HUAC or the House Un-American Activities Committee
It was justified through the Mandate of heaven. Basically. It was thought that only one legitimate ruler could be the ruler of china. And whoever that one ruler was, he was blessed with godlike powers.
Hoped this help :P
The thirteenth amendment abolished slavery in 1865. But, this didn't guarantee slaves citizenship rights until the 14th amendment was passed.
A. Osama Bin Laden, aided by the Taliban, his in Afghanistan after the 9/11 attacks. Is the answer I'm pretty sure.
India had the fourth-largest railway network in the world by 1900.