Antares wasn't "discovered" in the sense of being found for the first time. It's one of the brightest stars in the night sky and has been known since ancient times.

Here's why:

* Ancient Astronomy: People in ancient civilizations around the world, like the Egyptians, Babylonians, and Greeks, were keen observers of the night sky. They recognized and charted the positions of prominent stars like Antares.

* Its Brightness and Position: Antares is a red supergiant, making it very easy to spot with the naked eye. Its location in the constellation Scorpius also contributes to its prominence.

So, while we don't know the exact date of its first observation, we can say that Antares has been known for thousands of years.