What was the casta system, and why was it created?

Put the following events in the correct chronological order: i. new state constitutions are formed. ii. declaration of independence is signed. iii. second continental congress writes the articles of confederation. iv. special conventions are convened to produce fundamental laws for the states. a. ii, iii, iv, i b. ii, iv, i, iii c. ii, i, iv, iii d. ii, i, iii, iv

The factory system of the early-19th century caused a) a decrease in farm production. b) an increase in rural population. c) an increase in urban population. d) high unemployment in other areas.

According to some historians which marks at the beginning of the us civil war