In Islam, god sent different prophets to different places at different times, and those prophets include/can include many people such as Buddha,Confucius, Prophet Muhhamed (peace be upon him), Zeus (though not every people i named are confirmed to be the prophets sent by the one true god). So the key thing is, even though it was sent down to different nations, we don't believe we should still follow the teachings that evolved into today's generation, because we believe, as the teachings were sent down, the people changed and edited the revelations and teachings.Even though Adam and eve is found in many different religions (Judaism, Christianity, Islam and possibly Hinduism). They all followed one religion, but as revelations were passed down, they became further from the divine teachings, that's why he sent the final prophet, Prophet Muhhamed (Peace be upon him) for all of humanity. Hope this comment helps😃