Nursery rhymes, short poems for children, emphasize the rhythm and rhyme, and are usually circulated in oral form. Many nursery rhymes are based on idiomatic expressions in ancient rituals, or based on later historical events. Many adults think that nursery rhymes are coaxing children, so they also coax children to sing them.
However, in Sichuan (near today's Meishan Jiangshan Town), there is an ancient nursery rhyme: "Shi Long to Shi Hu, gold and silver, whoever can understand it, buy all the Chengdu Province" surprisingly, because this nursery rhyme leads to a big treasure, which many people never expected.

This treasure is Zhang Xianzhong's silver treasure, but speaking of this treasure, we must start from Zhang Xianzhong, about Zhang Xianzhong, there are many legends, but there is no certain historical data for examination, so it is still unknown whether it is true or false.
Zhang Xianzhong was one of many peasant rebels in the last years of the Ming Dynasty, who established political power in Chengdu and was eventually suppressed by the Qing army. But before his death, Zhang Xianzhong had accumulated a lot of wealth, and when he was repeatedly defeated in battle, he was ready to transfer his wealth, and it is said that he was carrying the treasure in a boat at that time, and when he walked to the vicinity of today's Meishan Jiangkou Town, he was attacked by a sneak attack, and a large amount of treasure he carried sank at the bottom of the river.
The water flow in the area of the wreck is very fast, and it is difficult to salvage it in ancient times without some equipment. It is said that some people who have seen the scene, but do not dare to go down the river to salvage, and finally with the change of the times, this matter has become a nursery rhyme and has been passed down.
Later, the relevant departments explored the legendary shipwreck area, and as a result, at the confluence of the three rivers, a large amount of gold and silver was really scattered. Later, through the drainage method, the treasures and cultural relics at the bottom of the river were exposed. Sure enough, there are a lot of treasures and cultural relics at the bottom of the river. But it is a pity that after hundreds of years, tomb robbers and the erosion of the river, treasures and cultural relics may have been lost in large quantities.
This ancient nursery rhyme attracted many patronage by tomb robbers and eventually attracted the attention of the state. It can be seen that the nursery rhymes handed down in ancient times are not all traceless. If it can be handed down, there must be some facts or a large number of facts as a foreshadowing.