sentence: Chongqing is said to be the semi-mythical State of Ba that began in 11th century BC, when the Ba people began living here until they were destroyed by the State of Qin in 316 BC.
modified: fix grammar: Chongqing am said to be the semi-mythical State of Ba that began in 11th century BC, when the Ba people began living here until they were destroyed by the State of Qin in 316 BC.