Answer:
It impacted politics in the mid-19th century because of the large inflows of immigrants after 1845 from cultures that were different from the existing American culture.
Explanation:
I
Answer:
Spain: Had explored Mexico, Cuba, The Florida Peninsula, and more or less southern half of the Western United States, including modern day California, Southern Nevada, Arizona, New Mexico and Texas.
France: French fur traders where great early explorers in North America. They mostly settled in Quebec, alongside the Saint Lawrence River, and explored surrounding region. They also explored the Midwest, following the Mississippi and Missouri Rivers, from the Great Lakes, to New Orleans, a city which the French founded.
England: the english settlers and explorers mostly concentrated on the Eastern United States and modern-day Ontario
BC is Before Christ and BCE is Before Common Era.
