Byzantium/Constantinople was conquered in 1451, but the empire continued to decline starting around the 18th or 19th centuries. It officially died in WWI. As for how long it was a major threat to Europe, the empire's prime was the 16th century, under Suleiman the Magnificent.
The coup was the culmination of a conflict between the old and new political, economic, and social orders that had been under way since Gorbachev had risen to power in 1985. His perestroika and glasnost reforms had set in motion forces that were bound to collide at some point.
Answer:
The tools that are used to create goods are called capital. Sometimes, it is also called capital good.
Answer:
I'm pretty sure it's with military force.
The south was mainly agricultural, cultivating cotton in some form was most people's entire livelihood, creating sort of a cultural divide from the north. plus, the menial and arduous labour in the south was incredibly appealing for slave owners, but this didn't happen in the north where factories and mills were everywhere and staffed by non enslaved people. cotton united the two by the south growing it and the north turning it into textiles and other finished products. together they had quite a good system since each part was able to specialize