c. The establishment of global empires
The Battle of Antietam, also known as the Battle of Sharpsburg. 22,000 casualties, actually.
Answer:
Merriweather Lewis and William Clark are most known for their expedition from the Mississippi River to the West Coast and back. It was a long and dangerous journey that they both managed to complete and survive on.
Hope this helped!!!!! Have an amazing day!!!!
Most of them came because of civil unrest, severe unemployment or almost inconceivable hardships at home.