Who invented the earliest coffin?

A long time ago, in Luobiao District, Gongxian County, Sichuan Province, there was a place called Matangba, where many Bo people lived. Among them, a accounts for the majority. One day, an old man named A died, and the family invited Mr. Feng Shui to see the place where the old man was buried. Mr. Feng Shui walked around Matangba and finally pointed to a steep rock and said to A's family, "There is a white rock here. You should make a coffin out of a big piece of wood, put the dead old man in this coffin, and then bury him on this white rock. The descendants of your A family will certainly be very rich. " According to Mr. Feng Shui, A Jia made a coffin out of a big piece of wood and invited a stonemason to make a hole in the white rock. The white rocks are high and steep. How to fight? Thinking about it, they can only stand under the rock with the winch Zhuge Liang taught them to use in the battle, and set up a high platform on the winch to let the masons stand on the high platform to make holes. Finally, two holes with thick bowls were made in the rock, so two thick logs were stuffed in the holes, and then the coffin was hung by a winch and placed horizontally on the two thick logs. This is the origin of the hanging coffin burial of the Gelao people. Since then, the Gelao people have learned to hang coffins and carry them after death. Later, Ajia really developed and became the most powerful tribe among Bo people. Until the first year of Wanli in the Ming Dynasty, A Jia brothers and sisters became heroes to rebel, and they were called Wang Jianguo in Jiu Si (now Xingwen County) in Jianwu, Sichuan. When the three brothers and sisters of Ajia rose to revolt, Ajia was very powerful. At that time, there was a scholar named Ying Luo, who knew the five elements of Yin and Yang and could read Feng Shui. Luo Wentz Eiji's family is a big landlord, and food, gold and silver and other property have been forcibly expropriated by the rebellious Bohai people. In order to get back at Jia, he went to Jia and said, "In Wa Shi Cun, Chang 'an Township, Weixin County, Yunnan Province, there is a place called Duanjingshan, and there is a white rock called Yan Baihu opposite Duanjingshan. If you take down Matangba's coffin, transport it to prestige and hang it in Yan Baihu, your family will be more developed and stronger, and the whole province of Yunnan and Sichuan will become your family's world. "Listen to the Luo Ying, jia, happily took seven coffins from Matangba, shipped to prestige tile stone, and also shipped two winches to hang coffins. According to Luo Ying scholars, A Jia hung seven coffins on the White Tiger Rock in Shi Wa Village in exactly the same way as the Luopuma Tangba. But not long after, A Jia's three brothers and sisters were all defeated and killed, and A Jia completely collapsed. After the death of A Jia's three brothers and sisters, the imperial court continued to encircle the Bo people who fled into the deep forests, especially those named A, regardless of gender, age and age. Under this bloody massacre and repression, A surname Bo remained anonymous, and A character was changed from "Lian" to "Gui". Change them all to his last name. In the future, the hanging coffins of Matangba were called "He Jiaxing Yanzi", and the hanging coffins of Weixin Washi were also called "He Jiaxing Yanzi". After the Bo people were besieged, no one went to Washi to hang coffins. Years later, four of the seven coffins collapsed. Now, there are only three hanging coffins left on the Yan Baihu. It is said that in those collapsed coffins, there are precious funerary objects such as gold, silver, jewelry and jade. At that time, some greedy people competed for those sacrifices. However, no matter who fights for them, as long as they get it, these treasures will sting his eyes and make his eyes dark, just like a blind man. Strangely, as long as you abandon the treasure in your hand, the pain in your eyes will disappear and your eyes will remain bright. As a result, no one dared to take those treasures, and they were all thrown into the deep mountain canyon.