The imperialists needed workers to work on the land that was colonized. The locals were not an option because they were often either insubordinate, or they were protected by the law. That's why having slaves to work in those colonies was great, which is why they got them from Africa.
Into Patriots and Loyalists
A Scythian nomad of Central Asia would have also been known as a) Saka. This is because they spoken an Euro-Iranian language and Saka relates to an Iranian root word which means nomad. The Scythian nomads were a large group of Eurasian-Iranian nomads who lived in the central Eurasian steppe area.
B north atlantic drift, i hope this helps
Samuel Morse invented the telegraph. The telegraph allowed for the United States to continue expansion westward but still be able to communicate with more areas of the country. This communication system typically followed along rail routes and if a rail line was close by this communication system could be used to issue alerts, news, and messages across the country. This technology allowed for a capital on one side of the country to keep tabs on the other coast.