This Masters of the Universe t-shirt features an image of He-Man posing with his Power Sword. The shirt reads Masters of the Universe 1983. He-Man debuted in 1983 when Prince Adam held up the Power Sword and said, "By the power of Grayskull, I have the power". Prince Adam transformed into He-Man, the powerful hero that defended the secrets of Castle Grayskull from Skeletor. With amazing and exciting adventures in Eternia, He-Man became one of the most popular cartoon characters of all time!