Why can't the history of Jinglou be found out?

You can find it. The following is Baidu's explanation of Lou Jing:

Lou Jing is a township, located in Gucheng Township, tanghe county, Nanyang City, Henan Province, with 3 12 national highway and 3 kilometers away from Tanghe County 13, and rich in oil resources.

The local specialty is long-haired rabbit, which is the rabbit hair trading center in southwest Henan. Agricultural products are mainly wheat and corn. Street South Street faces the river in the east and is rich in water resources.

The main enterprises are flour mill, board factory and gelatin factory.

The well building is a treasure trove of geomantic omen, surrounded by water on three sides, which the ancients liked. According to the recent excavation of the ancient tomb, the history of the well building should be more than 3000 years. Loujing Han Dynasty was suitable for autumn gathering, Dongchuan County in the Western Wei Dynasty and Zhongli County in the Northern Zhou Dynasty, and the city was destroyed by war. Jinglouji Town is a famous historical town. According to legend, there was a three-hole well in the town in the early years, and a pavilion was built on the well to provide accommodation for merchants. In the Ming Dynasty, it was called Jingloudian, and in the late Qing Dynasty, an earth wall was built around the town as a village, which was called Zhonghezhai. In the Republic of China, it was changed to Loujing Town, namely Lou Jing Street. Lou Jing Street, where the Han people live in compact communities, is full of shops and is prosperous for a while. Lou Jing Street Mosque, the tomb of Dr. You Chu Song Yu, the mother base of Han General Han, and nine ancient tombs in Wen Zhuang all have high sightseeing and appreciation value.

Moreover, Jinglou is located at the junction of the four townships, with an important geographical position and a prosperous market. 3 12 national highway runs through it, and with the construction of oil fields, the transportation is convenient.