Why does Shays rebellion matter in the history of the United States?

What was the main argument of plessy in plessy v. ferguson

Who rejected the final compromise effort to stop the session movement?

What is the significance of the battle of saratoga? a. the defeat at saratoga allowed the british to invade new england by land. b. after the defeat at saratoga france refuse to sign a treaty with the united states. c. the british won a decisive victory at saratoga. d. after the victory at saratoga france gave open support to the united states including arms money and ships.