The Monotheism of Abraham and How It Shaped World History By: Teresa Rose Elizabeth Bottoni The Monotheism of Abraham sets out to prove that the God of Abraham who came from the city of Ur in Sumeria, in roughly 2,000 BC, is the same God worshipped by three of the world’s major religions: Christianity, Islam, and Judaism. The followers of these religions make up over half of the world’s population. Like a golden thread, our God connects the world of humanity together.