Researchers from Chinese Academy of Social Sciences have found remains of an ancient Chinese imperial palace in China's Henan province. It was after three years of excavation that the archaeologists were able to find the ruins of the palace.

The Taiji palace complex dates back 1,700 years and covers 6,000 sq metres. The palace is said to have marked a new era in the construction of ancient Chinese capital cities. During the three kingdom period (220-280 AD), the complex remained the centre of the ancient capital city of Luoyang in the Han Dynasty (206 BC-220 AD) and Wei state.

Researcher Liu Tao said that ancient capital cities were built in an axial structure and the main palace was in the centre that signified the dominance. As per historical records, Emperor Ming of the Wei state had built the Taiji palace.

It was in July 2011 that the excavation process was started with the help of new technologies and measures. Three dimensional scanning and image restoration technique was also used. The palace was used as the main palace in the capital city and the most important activities were carried out in the palace like New Year celebration and political decision making.

The excavation process has not completed and archaeologists said they are working to unearth the annex of the palace. Liu said the ancient capitals had a number of imperial palaces.