How did Shirk begin?

Neither - it would be correct to say 'has begun'

First it is not Muslim religion, it is Islam. Islam began historically on the Arabian peninsula, in the towns of Mecca and Medina (near the west coast inland from the Red Sea). Muhammad (570-632 CE)...

The Mesopotamia began growing because it was rich fertile land near the rivers so it was a perfect place for farming.

Read and re-read the script.

Historic Zen origin documents are not available. We know it was originally called Chán in China before it came to Japan. People suspect it may have resulted from a union of Mahāyāna Buddhism and...