Here's what we know:
* Ancient civilizations: People around the world have recognized Orion for thousands of years. Babylonian, Egyptian, Greek, and many other cultures have myths and stories about the constellation.
* Early astronomers: While there wasn't one person who "discovered" Orion, early astronomers like Ptolemy (who cataloged the stars in the 2nd century AD) contributed to our understanding of the constellation and its stars.
Therefore, Orion wasn't discovered by one person but has been known and observed by humans across cultures for millennia.