What things have the ancient chinese invent?

The solvent union and u.s believed in two different economic systems which was?

Where were the trials to review evidence in cases against high-ranking nazi officials accused of war crimes held?

Plz ive been stuck on this question forever. in 1753 george washington was sent on a mission to a. build a fort at the point where the allegheny and monongahela rivers form the ohio river. b. attack the french at fort duquesne. c. attack the french at fort neccessity. d. deliver a message to the french demanding that they leave the ohio river.