Introduce
The subject lies in township of a river in ancient China of Wangjiang county, in place of 10 kilometers in southeast in county town in Wangjiang, are close to the north bank of the Changjiang River, area is 100 sq. km., it is the thunder harbour to enter the river. Because ancient the intersection of thunder and water flow, come here the intersection of Hubei and yellow the east, circle of Mei County, accumulate and succeed the pool, thus come the name of a river in ancient China, also the intersection of name and loud a river in ancient China.
Put the heavy thunder to defend in the Eastern Jin Dynasty, as the strategic point of the defense works along the Changjiang River. Salty and two years (327) Go through the male genital (today and county) Unite in longevity spring Su Jun in the town (today Shou County) The rebellion of inviting the grandfather of the town, build health (including Nanjing) to Kyoto Attack, the river state feudal provincial warm Jiao loyal to the imperial court wants at top speed the interconnected system soldier safeguards and builds health.
After it is learnt that age building health and administering central regime is on, worry holding Tao Kan, feudal provincial of Jing Zhou of the massive forces at that time and take advantage of a weak point, so say in newspaper Wen JiaoShu : My worried west frontier, overly go through the male genital, even there is not one step of a river in ancient China under the foot.
It is warm to sit for meaning to shout Zhenyuan defend, exceed a river in ancient China but the east. Later in order to show impassable a certain limit. dare not go one step beyond the prescribed limit Idiom,namely come from this. Will open one (1621-1627 years) tomorrow A river in ancient China mouth fill in by a large amount of quicksand, thunder water change its course, flow into the Changjiang River from the intersection of China and positive town, county of Wangjiang.