What are the three most common categories causes and effects are organized into

Why is it useful for historians to base certain studies on the analysis of historical periods

Explain how republicans gained control of southern state governments?

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.