Most immigrants to the united states in the mid-1800s made the ocean voyage

What directive in source a might have been at the root of the action described in source b?

Which one of these were common aspects of war efforts during world war 1 1. rationing 2. war bonds 3. using schools as military facilities 4. child soldiers 5. women working in factories circle all that apply

What happened 10 million years ago? if u answer, u get 50 ! plz answer ; -;