Equatorial Guinea Stamps for 1972 Olympic

Romania Stamps for 1992 Olympic Games

Macedonia Stamps for 2008 Olympic Games

South Korea Stamps for 1988 Olympic Games

Poland Stamp for Hockey

Hockey is the National Game of India and Pakistan

History:
The first sport we know of that seems similar to hockey was played in Ancient Egypt over 4,000 years ago. There are no records of the modern form of the game until its appearance in English schools in the 18th century, and the formation of hockey clubs in the 19th century, the first of which was formed in 1849 at Blackheath in south-east London. During this time the game became popular among British military officers and soldiers, and they introduced it to many of the countries Britain was then colonizing. To this day, field hockey is popular in places that were once part of the British Empire, and it is even the National Game of two such countries; India and Pakistan. The game is also a popular sport for men and women in parts of Europe, South Africa, and Australia, but in North America and Northern Europe, including Russia and the Scandinavian countries, field hockey's "cousin" ice hockey is a much more popular game.