A definitive stamp issued in September 2002 by the Česká Pošta (Czech Post). Gemini is the third sign of the zodiac, according to astrology. Geminis are a mix of the yin and the yang, and thus, they are represented perfectly by the Twins. People born between May 22 – June 21 are born under the zodiac sign of Gemini. Although, recently, there was a report that zodiac signs have changed due to the changes in Earth’s alignment. And because this of, my zodiac sign is now Pisces, and not Aries. Go check this link to see if yours has changed as well.
More about this sign here in Wikipedia.