the battle of tippacanoe, victory of US major general William Henry Harrison over the Shawnee Indians. the US victory broke Tecumseh's power and ended the threat of an Indian confederation
Saint Dominque was a colony under French rule. Haiti is the independent nation that got their freedom from the french in a slave revolt. (Haiti used to be Saint Dominque)
I believe it's joint-stock companies.
Congress passed this act to send the remaining Indian tribes to the unsettled western territories. The reason why this act was passed was probably so that the land in the existing borders could be used.