Four well-preserved residences in an ancient village, probably submerged by a flood, have been unearthed in central China, providing an insight into rural life about 2,000 years ago, archaeologists said. The village in Neihuang county, Henan province, belongs to the late western Han dynasty (206 BC - AD25), director of the Henan provincial institute of cultural relics and archaeology, Sun Xinmin said. "With the excavation, archaeologists are able to map out the layout of the ancient village and the architecture of village residences in the western Han dynasty for the first time," Sun said. Every residence, surrounded by farmland, has tile roofs, a courtyard and its own well and consists of a gatehouse, wing-rooms, porches and washrooms, Xinhua news agency reported. Archaeologists believe there used to be mulberries, elms, crops and alleyways outside the courtyards. The roofs, which are well-preserved in their original state, are considered extremely precious by archaeologists. The village is near the ancient Yellow River and was probably submerged by a flood. After that the village lay silently in the river course for many years, archaeologists said.