The earliest foundation of Beijing City was Youzhou City in the Tang Dynasty. In the following thousand years, Beijing has had four large-scale developments, or expansions, or new repairs, respectively in the Yuan Dynasty in the Jin Dynasty and in the Yuan Dynasty. In Dadu, the inner city built in the early Ming Dynasty and the outer city built after the middle of the middle period, this is how Beijing's convex-shaped city walls were completed. The Qing Dynasty inherited Beijing from the Ming Dynasty, and did not change the overall layout of the city until modern times. According to this text, the following statement is correct:. ['The first large-scale development of Beijing was in the Yuan Dynasty.', 'Beijing City expanded the outer city in the early Ming Dynasty.', 'The convex-shaped city wall of Beijing City was formed in the Ming Dynasty.', 'The overall layout of Beijing City has not changed significantly in history.']