Why was the united states motivated to launch the marshall plan immediately following world war ii?

Is this statement true or false? before 1850, workers in american mines, mills, and factories were poorly paid, but their safety on the job was always protected by strict laws.

The establishment of columbia as the state capital was important because a) it was located in the heart of the upcountry. b) it was located in the heart of the low-country. c) it was already established as a vital industrial center. d) it represented a compromise location central to most citizens.

After the civil war which president was called a "carpetbagger"?