Emerald says: "§ 23.23(c) It is unfair or deceptive to use the word "laboratory-grown", "laboratory-created", "[manufacturer name]-created", or "synthetic" with the name of any natural stone to describe any industry product unless such industry product has essentially the same optical, physical, and chemical properties as the stone named." Emerald is regarded as the traditional birthstone for May as well as the traditional gemstone for the astrological signs of Cancer. One of the quainter anecdotes about emeralds was told by the 16th-century historian Brantôme, who referred to the many impressive emeralds the Spanish under Cortez had brought back to Europe from Latin
Pokémon Emerald features compatibility with the Nintendo e-Reader and 83 cards launched for "Emerald" on October 7, 2004. This was removed from the English versions. It is the third version of "Ruby" and "Sapphire" and follows a tradition of third releases ("Pokémon Yellow" for "Pokémon Red" and "Blue" for example). The wireless adapter was bundled with Japanese copies of "Emerald"; this was removed from English versions of the game. Nintendo has done several promotions related to "Emerald". Nintendo held a competition for players based on "Emerald" where players compete to be the ""Pokémon Emerald" Ultimate Frontier Battle Brain". The competition took place