Entertaiment is a type of activity that provides enjoyment. It can involve watching a performance or participating in sports. It can also include activities such as reading, playing games, watching movies, or cooking. Some forms of entertainment, such as satire or ceremony, may have serious purposes in addition to amusement. Many entertainments are culturally specific, forming traditions that can be passed down through generations. Other entertainments are more commercial or global, such as world championship sports. Still others are purely personal, such as writing or playing music. The meaning of entertainment has changed as society has evolved. The evolution of technology and changing social values have influenced the form of entertainment.