Which city was Kaifeng in ancient times?

Kaifeng, called Bianliang in ancient times, is located in the east of Henan Province, in the center of eastern Henan Plain on the map of China. Kaifeng is one of the seven ancient capitals in China. It is an excellent tourist city in China, a national double-support model city and an advanced city in building a civilized city in China. It is also one of the three central cities of Zhongyuan urban agglomeration in Henan Province, and a "three-point-one-line" golden tourist route along the Yellow River. The city has a total area of 6,444 square kilometers and a population of 4.8 million, including 3,634,000 hectares of cultivated land, an urban area of 359 square kilometers and an urban population of 800,000. It has jurisdiction over five counties including Weishi County, Qixian County, Tongxu County, lankao county County and Kaifeng County, and five districts including Gulou District, Longting District, Yuwangtai District, Shunhe District and Jinming District.

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In the history of China, Kaifeng was once called the Girder, the Capital of Song Dynasty, the East Capital, Tokyo, Bianjing and so on. The city has been built for more than 3000 years. During the Warring States Period, Wei State was also called Liang State, and Hou Liang, the Later Jin Dynasty, the Later Han Dynasty, the Later Zhou Dynasty, the Northern Song Dynasty and the Jin Dynasty established their capitals in Kaifeng, so it was called the "Old Capital of the Seven Dynasties". Kaifeng, together with Luoyang, Anyang, Xi, Beijing, Nanjing and Hangzhou, is known as the seven ancient capitals of China and enjoys a high reputation at home and abroad.