The four treasures of the study, pen, ink, paper, inkstone, and paper are all out, and the other three will soon be made, among which the inkstone is the simplest, and the ink and brush are slightly more troublesome, but it is not as troublesome as the paper production, and the simple pine smoke ink and animal brush can be made in a few days.

Just entered the third month of spring, the four treasures of the study have been completed, of which the paper has entered mass production, three feet square paper, can produce dozens of sheets every day, and the paper-making personnel are only ten adult clansmen plus more than ten juvenile clansmen.

It is a very obvious fact that as the population of the dragon tribe increased, many of the tribesmen began to devote themselves to some kind of work, carpenters who worked full-time, potters who specialized in making pottery, stonemasons who specialized in polishing stone tools, and now there were tribesmen who specialized in making paper.

These jobs are all technical work, and only full-time work can continuously improve their technical level, which is also what Su Yan needs.

For example, in the case of adult male tribesmen, those with high strength have to rotate various physical tasks such as hunting, mining, and building cities, and doing physical work can exercise their bodies to a certain extent, and they have more strength, and they work more efficiently than those with less strength.

Those with low force are required to work full-time as carpenters, potters, stonemasons, and other technicians, which do not require much strength, and those with low force are not suitable for participation in battle, but they are suitable for full-time technicians.

In the past, all adult males had to participate in hunting, and they had to do some work as stonemasons and carpenters, and they had to do everything, but they were not good enough in all aspects, and their strength was dragged down by all kinds of miscellaneous work, and their skills did not improve much.

The Dragon Tribe already has a population of 5,000, and the division of labor is the future development direction, and even full-time military personnel will appear in the future, but not now, after all, the Dragon Tribe still has to carry out large-scale construction, which requires a large amount of labor, and the labor force is insufficient, and it cannot afford to raise full-time military personnel.

Xiaohua Xiaoyue sisters were the first two to learn calligraphy with Su Yan, Su Yan's calligraphy in her previous life was not bad, and she naturally inherited it in this life.

In front of the wooden table, Xiaohua Xiaoyue sisters stand on both sides of the wooden table on the left and right, on the desktop in front of them, two stones as paperweights are pressed with two slightly yellowish papers, and a stone inkstone is placed on one side, with black ink in the inkstone, and the two of them are holding a brush in their right hands respectively, trying to write on the paper.

Su Yan corrected the techniques of the two of them from time to time, and Su Yan wrote calligraphy for a third of the time, and the two learned.

Xiaohua Xiaoyue sisters, as beginners, how bad the brush words can be, Su Yan didn't care, who didn't come out of this step, patiently taught the two to learn the brush words, and then Su Yan will also teach Wu, Wu's disciples, and several clansmen who are full-time teachers of the Dragon Tribe to learn brush words.

Writing and painting on paper with a brush is easier and easier than writing and painting on stone slabs and animal skins, which was the first thought in the minds of the witches of the Dragon Tribe after seeing Su Yan writing on paper with a brush.

How do the witches usually write, they generally write on the land with sharp stones, and only important knowledge will be carefully engraved on the stone tablets as the inheritance of the dragon tribe, even if the paper appears, it is impossible to abandon the "stone tablet inscription" in a short period of time.

The witches quickly accepted the brush and tried to write on paper, and then they gave up "charcoal and animal skins", although it was a little difficult to write with a brush, but they were happy to learn this more convenient way of writing.

The slate is so thick and heavy, you can't record too much knowledge on a slate, you can only pick the important knowledge and burn it, but you can easily record a lot of it with paper.

The advent of paper did make it much easier to write words, and Su Yan thought about preparing to write three books, two of which were children's textbooks, one for words, one for simple mathematics, and the remaining for medicine.

When these three books are compiled, Su Yan will use movable type printing to print these three books in large quantities, and more books will appear in the future, but these books can only be written by Su Yan himself, and I don't know how much time it will take.

……

The Dragons' team in charge of building houses hasn't expanded much, but because there are fewer rainy days in the spring than in the summer, a batch of ten houses is built almost every six days, and it is expected that by the second month of summer, enough houses will be built for all families, including those who have just joined the Dragons this year.

In the blink of an eye, the rainy season has arrived, and there are many places that need to be set on fire this year, in addition to the area around the dragon tribe to open up the wasteland to expand the area of cultivated land, but also to open up the construction area of the second city and the road from the first city to the second city.

The exploration team led by Shen Herong set out early to the north, and before the heavy rain fell, a fire broke out in the jungle, and the raging fire swept away the construction area of the second city of the Dragon Tribe, leaving only large areas of ash and some trees that had not been burned.

During the second and third rains of the rainy season, the road from the first city to the second city was also opened, and after the road was opened, the exploration team turned to the road with shovels and pickaxes to correct the road, at least so that the wheelbarrow could pass on the road.

Wait until next year, the dragon tribe will send a team of at least five hundred people to the construction area of the second city, now build some simple houses to live in, and then start to build the second city, in Su Yan's design, the internal structure of the second city and the first city will not be too different.

As Su Yan expected, in the second month of summer, except for the families of the witches and patriarchs in the Dragon Tribe, the rest of the families have moved into their new homes, and even the beast circle in the central area has been moved to the southeast region.

The old-fashioned brick houses were torn down and replaced by courtyards that covered a larger area, and these courtyards were the high-rise homes of the Dragon Tribe, and the families of the patriarchs were very large, and the houses in the courtyard were either two or three, and they had developed in the direction of small courtyards.

Su Yan's new home was also designed by Su Yan himself, the new home is also composed of three houses, in addition to the front of the house is used to live in people, the houses on both sides are used to place various things, such as food, tools, etc., the yard will plant some flowers and plants, and even transplant a few trees to build a pavilion.

Thinking back to the living environment a few years ago, from the very beginning of living in a crowded cave, to the brick house, and now it is also a brick house, but it is a continuously improved brick house, with wooden doors and windows, which can better resist the cold, and the life of the dragon tribe is getting better and better.