Religions evolve and change--if a religion does not believe that.

The Catholic Church of my youth is not exactly the same as today's Church. Even this church has different sub-cultures in its vast geographical expanse.

If I am to look broadly and beyond theology, Islam has fairly similar attitudes as Christianity of 1400. Back in those times, it was the Muslims who were the advanced people. Ideas from the Muslim world trickled into Europe to bring about the Renaissance.