What does Lincoln claim is dangerous about looking at the US as just "parts"

In what two ways were the tang and song dynasties of china similar? they jointly built the grand canal. they were economically strong. they had weak military forces. they ruled for about 300 years. they discouraged buddhist ideas.

Which statement best explains how the invention of corporations contributed to the economy in the 1800's

Which country was the last to join the allied powers? o great britain o france o united states o china