Explanation:
Although he had been tempted to build his capital on the site of ancient Troy, Constantine decided it was best to locate his new city at the site of old Byzantium, claiming it to be a New Rome (Nova Roma). The city had several advantages. It was closer to the geographic center of the Empire..
They believed that we should take over other country's
I would say honesty, because people already thought he was very charismatic, that is one reason why he won the presidency.
[I'm not sure though, but that is the answer I would go with.] I hope this helps.
Answer:
It convinced the British that the Americans weren't worth fighting against anymore.
Explanation: