What effect did improved metal-making processes have during the industrial revolution?

During the cold war, the united states was involved in certain regional conflicts due to fears later called the domino theory, which stated which concept?

Which south american patriot of lrish descent became the leader of newly independent chile

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.