The Chavin civilization developed, in part, as a result of the merging of two large rivers--the Mosna and the Huachecsa--in the Mosna Valley, since these provided crucial irrigation for crops.
There were many ways in which early Muslims viewed and treated Jews and Christians, but mostly it was with tolerance, except on the outskirts of the empire.
Yes, it is true that civilians are only tried within the civilian tribunal, not military court, since there are major differences in terms of the ways in which these two courts are operated.