The period 600 CE to 1450 CE is characterized by the opening of important trade routes between the world known then: Europe, Asia and Africa mainly. The intensification of trade implied a spread of languages, culture (religion) and customs of different peoples. With trade, products and diseases were also exchanged that made the revision of local beliefs and traditions necessary and permanent. To reconfigure the forces of power in those times, innovation was important and in many cases the adoption of religious systems or institutions was a good start for the reorganization of declining societies that should flourish after the fall of the great world empires.
