Probably the most beautiful masks in the world are the religious or _No_ masks of Japan. These are worn in the sacred _No_ plays, of which there are more than two hundred. They represent the Japanese idea of the appearance of their gods and heroes. Music, dance, and dialogue all are used in the five or six short plays which make the _No_ cycle. The _No_ begins with the bestowing of blessings by the gods and their victory over the demons. A short love story follows, with possibly a bit of humor, and then a picture of the passing of life. The end is a gracious recognition of the favor of the gods. These ancient plays are performed out of doors on a simple platform erected against a wall on which is painted a symbolic pine tree. Masks have been used for more than four hundred years in these _No_ dramas. The ancient Egyptians used the mask in their sacrificial ceremonies. In the “Book of the Dead” ceremony one may see a priest wearing the jackal-headed mask of Anubis, standing before the bier of the great god, Osiris. The victims kneeling before him wear hare and hawk headed masks. Egyptian kings wore lion, bull, and dragon masks to impress their subjects with their mighty power. Even the mummies wore masks. On the faces of their dead kings they placed masks of pure gold as did the Mycenæans. The mask, as we know it, came to us through the Greeks. In the worship of Demeter, the earth mother of the Greeks, masks of horses, pigs, cats, hares, and asses were used. Masks were also used in the worship of Dionysus, with dancing, chanting, and chorus. The Greeks, being the first people to have a theater, were also the first people to realize that no human face could portray the sustained expression of tragedy and comedy called for by the great rôles of their dramas. The mask became a necessity. Thespis is credited with its invention. The mask enabled an actor to play female rôles, to play many different characters, and to represent his character in youth, middle life, and old age. The open mouth characterized the Greek mask. Some scholars have believed that a brass mouthpiece was used to amplify the voice of the actor. The Romans appropriated the Greek mask. Virgil tells us that they hung masks on trees at the time of sowing, in order to better the crops. Noble Romans wore masks of their illustrious ancestors at funerals. The impersonators riding in chariots through the streets were dressed in rich robes of office, resplendent in purple and gold such as the dead nobles had worn in their lifetime. When the funeral procession reached the Forum, the maskers solemnly took their seats on the ivory chairs placed for them on the platform of the rostra, in the sight of all the people. This spectacle, no doubt, stirred memories of the glorious past in the hearts of the old and fired the young with noble ambitions. It is said that Nero wore masks resembling his own face and those of his favorites.