What was a primary motivation for American pioneers to travel to the Southwest?

Which groups united to form the populist party

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.

In this diary only in researching sidney montz or can it be used to research broader subjects