What did the northwest ordinance do? a. it allowed the ownership of slaves in all new territories. b. it ceded the ohio valley to france and its indian allies. c. it required that townships set aside land for public schools. d. it banned non-christian religions from all new states.

c. it required that townships set aside land for public schools.

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).