All the years of ash and Yan

people say the great wall was the first to be repaired by the qin emperor.

he didn't build the great wall.

long before the qin emperor, when he fought in the spring and autumn, there was a king of yan, who was small, small and weak and threatened to be eaten by his neighbours.

in order to preserve the land, the king of yan expropriated his husband and built a high wall on the top of his land border hill in order to prevent incursions by outsiders.

because there was no lime at that time, he built walls, stones, bricks.

in order to save time and quickly repair the wall, he ordered winter work to continue.

it was cold, and the mud had to be hot water, so the people carried the iron pots to the work site, raised them with three stones, and burned the water with firewood.

for days and days, the iron pot was burned in a hole, and all the water from the pot was spilled; and the fire from it was extinguished.

it was also unexpectedly discovered that the water had been spilled on the stones of the pot, that the hot stones had exploded when the water had touched them, and that many white faces had been blown up.

one of the people who used this white-faced water and ploughed it, thought it was more fertilized than mud, and had viscosity, and put it in stone and bricks.

the following day, the villagers discovered that the stones and bricks sewd with this white face were more solid than with mud.

the yan people have been inspired, and since then lime has been burned to sew the walls.

later, the qin emperor reunified china and built the great wall in order to preserve his throne, just as yan had done.

at the beginning of the work, he gave a decree to the original yan people to carry out the lime-burning work.

so all the ashes used to repair the wall were burned by the swallows.

wherever the wall is repaired, it is burned on the slopes of the mountains, and the ashes are of very good quality, referred to by the later generations as the ash, which means that it is constant.

after the great wall was repaired, the other husband returned.

the qin emperor has taken out the gold and silver and built a town, which is now beijing, for the swallows.

as a result, beijing was called yan kyung, and ash burned by the yan people used the stoned mountains to be called the yan mountains。