Which best explains how settlers gained control of ohio by 1795?
a. diseases carried by settlers caused many american indian deaths, opening the land for settlement.
b. us forces defeated american indians in a series of battles, driving them off the land.
c. settlers and american indians negotiated a treaty that gave settlers control of the land.
d. president jefferson purchased the land from american indian groups that had lived there.

The right answer is C. Settlers and American Indians negotiated a treaty that gave settlers control of the land.

President Washington named General Anthony Wayne to head a military expedition into the Northwest Territory. In the fall of 1793, Wayne marched into Indian country with some two thousand six hundred men, built Fort Greenville, and went on the offensive in 1794. In August some two thousand Shawnee, Ottawa, Chippewa, and Potawatomi warriors, reinforced by Canadian militias, engaged Wayne’s troops in the Battle of Fallen Timbers, south of Detroit. The Americans repulsed them and then destroyed their fields and villages. The Indians, frustrated by their inability to stop the relentless waves of white settlers encroaching upon their tribal lands, finally agreed to the Treaty of Greenville, signed in August 1795. According to the terms of the treaty, the United States bought from twelve tribes the rights to the southeastern quarter of the Northwest Territory (now Ohio and Indiana) and enclaves at the sites of Detroit, Chicago, and Vincennes, Indiana.

a system of cooperative federalism emerged, as the powers of the federal government expanded.