Question

How was the US in the forefront of discovery from our founding until present? Examples to think about: The expansion westward, Louisiana, manifest destiny, settling the frontier

The Development of the modern city
Inventions and innovations for both industry and everyday life
Transportation and travel, communication and space
Computers, the internet, and technology

Answer 1

Step-by-step explanation:

The philosophy drove 19th-century U.S. territorial expansion and was used to justify the forced removal of Native Americans and other groups from their homes. The rapid expansion of the United States intensified the issue of slavery as new states were added to the Union, leading to the outbreak of the Civil War.