Cairo, Egypt, in its history[?] has had a significant number of fortified gates protecting both inner and outer city. Apart from the purpose of defense they were also used for differentiation of the varied social and economic classes. Often the gates were heavily decorated as artistic pieces.
... Vedic, in which the Vedas, the earliest Sanskrit texts, were composed. The earliest of the Vedas, the R^igveda, was composed in the middle of the second millennium BC. ...