What are the origins and elements of aztec architecture, urbanism, and culture?

How did the songhai empire strengthen islam

Drugs have a high potential for abuse. there is no routine therapeutic use for these drugs and they are not available for regular use. they may be obtained for “investigational use only” by applying to the u.s. drug enforcement agency. examples include heroin and lsd. which scheduled drug is this?

The appalachian mountains rise to heights of about feet. 2,000 2,500 3,000 3,500