Which countries did most immigrants to the united start come from in the antebellum era

Most immigrants to the United States in the antebellum era came from Germany and Ireland.

There were various reasons why they emigrated into the States, but the most important one was civil unrest in their native countries. Also, they couldn't find jobs home, and they heard that America is a land of freedom and opportunity, so obviously they wanted to be successful too.

Hope this helps!

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.

bujías y una hora antes y no me parece muy difícil