On March 21, 2011, Canada Post began issuing the first stamp in a new 12-stamp series which will continue throughout the year. This new series, the Signs of the Zodiac, kicks off in March with the sign of Aries. Ancient Greek astronomers mapped out the constellation of Aries as a ram lying down with his head to the right.
Each colorful stamp features an image of the zodiac sign as well as the corresponding star constellation. An intriguing release in this series will be the first day covers for each stamp, which, when correctly positioned, will form a sky map of all 12 signs. Also, in July a souvenir sheet will feature the four zodiac signs Aries, Taurus, Gemini and Cancer.