Where did Muhammad proclaim the Islam fell in order with other religions

Mecca

Explanation:

It all started when Muhammad began meditating on Mount Hira, a cave located near Mecca. There, he received a revelation about the religion of "Islam" and how it's connected to the other religions of Judaism and Christianity.

Muhammad believed that he was the final prophet of God. Thus, he proclaimed that Islam fell in order with other religions. He proclaimed this while he was in Mecca. Many poor people received his revelation well, but other people contradicted him and even plotted to kill him. For fear of his life, Muhammad fled to Medina where he built his first Islamic temple.

So, this explains the answer.

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