Who are the Northern Invaders as noted in the book, When God Was a Woman?

Also known as Indo-Europeans, Indo-Iranians, Indo-Aryans, and Aryans, the Northern Invaders are "battle ax cultures" who leave no record of when or why they choose a male deity. They enter history when they encounter the Goddess-worshipers of the Middle East. They may have been nomadic hunters-fishers, or perhaps they were shepherds beginning to practice agriculture when they leave their homelands in Russia and the Caucasus region.