Written by Dyami Millarson
This article narrates the history of the Amish as follows: “In the 1400s the printing press revolutionized Europe, enabling mass distribution of printed material fast. The Reformation roiled Europe in the 1500s, in no small measure due to Gutenberg’s invention. In the wake of Martin Luther and Ulrich Zwingli came a variety of sects, including the radical Anabaptists, who believed in adult baptism and strict separation of church and state. In 1693 the Anabaptists splintered into three sects, including the followers of one Jakob Ammann. They called themselves Amish.”
Before the emergence of the sects after the Reformation, there was the Schism between the Western and Eastern Church. And yet before that, there was a variety of different early movements such as Arianism. (As a quick introduction to the various historical sectarian developments of Judeo-Christianity, one may take a quick look at this Wikipedia page.) Judeo-Christianity has a long history of sectarianism as a result of different interpretations of God. These doctrinal differences amounted or amount to different Gods, and together they constitute polytheism.
One way to enforce doctrinal unity was through the sword, but this was not always possible. Eventually this became entirely unfashionable, particularly aftet the advent of the printing press in Europe. In the context of this less violently restrictive environment, new sectarian splits within Judeo-Christianity could increase exponentially. Therefore, it can be said that many new Gods emerged. However, even in pre-Reformation times the amount of Gods in Judeo-Christianity only increased as the amount of Saints ever grew. It was never a non-polytheistic system; for even before the belief in Saints, there was already the belief in angels and demons, which also clearly amounted to polytheism. Furthermore, the Judeo-Christian Scripture itself hints in multiple places at a multitude of Gods, but emphasises the supremity of one particular God.
Viking Religion 
This is a good thought. Have you ever read into Mormonism? It had an efficient, if less than novel, means of dealing with some of the theological quandaries mentioned.
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Mormonism has an interesting Christian response to the inherent polytheistic aspects, i.e. the underlying polytheism, of monotheism. By embracing polytheism, they solve fundamental theological problems. Germanic theology stayed true to man’s polytheistic nature, and so it has always been blessed with the lack of theological problems that inevitably stem from attempting monotheism in a world where polytheism is an inescapable reality.
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