 Other traditions appear to have originated in ways that are distinguishable from European theater (which originated in Athens). The African (Yoruba) tradition of theater emerged initially from masquerades celebrating ancestors (Adedeji 1969, 1972). Yet some traditions seem to have arrived fully formed: the Sanskrit Treatise on Theatre (Natya Shastra, Ghosh (trans) 1951) offers, at a very early time (somewhere between 200 BCE and 200 CE), a reasonably complete list of topics any treatise on theater that is focused on dramatics should include (acting, dance, music, dramatic construction, architecture, costuming, make-up, props, the organization of theater companies, the nature of audiences, theater competitions, and so on) (Schwartz 2004). Unlike Athenian theater, and its legend about the first actor, Thespis, human actors were not always the first evidence of theater. The early form of theater in the Han Dynasty in China consisted largely of shadow-puppet theater. The much later Tang Dynasty (618–907) is most famous for developing a form of theater that would be recognizable to Europeans as theater, were it not for the fact it was largely musical.