What is the origin of Sima Tang ancient building in Lingshan, Guangxi?

The origin is that Sima Dutang in Lingshan, Guangxi was built at 1780, which means it has been working for 45 years. There are six ancient houses, all of which are Hakka enclosed houses. The enclosed houses in the three entrances and two corridors are different, and the whole family plays a game of chess, which embodies the style of unity and unity of the Liu family. During the Ming and Qing Dynasties, the architectural style of each building was basically the same. There are 780 main rooms, lobby, wing, hall, balcony and courtyard. There is a patio between every two halls, and the height of the rooms is uneven, which has strict requirements on size matching and access arrangement. The two halls are ancestral houses, and the interior walls are all concrete except that the facade is supported by mud bricks and a small amount of blue bricks.