Answer:
The gold ducat of Venice gained wide international acceptance, like the medieval Byzantine hyperpyron and the Florentine florin, or the modern British Pound sterling and the United States dollar.
Northern portion of the Louisiana purchase and the Oregon territory
Imperialism was just big at the time, what better than to proudly say “hey, look, we have Hawaii”. That’s all I can think of... sorry if this doesn’t help at all.
the Legislative branch (specifically the Senate) must ratify treaties. This check on the power of President is part of the system of checks and balances.
