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How did chewing gum get spead around the world
Christianity
ltaly
They're spread around the world... usually along the edges of tectonic plates.
One major product is the ford company car, which has spread pretty much all around the world.
People have transmitted them.
The library in Nineveh
Hinduism is spread by the president of the united states long ago he met them and told them they could go around the world and spread there culture.
Word of mouth, i guess
christianity
14 million
Africa