In the vast snowy field, five huge figures of houses are walking forward with weight on a snowy night. These are five mammoth long-haired elephants. Each elephant is covered with armor made of bamboo rattan, and a bamboo house that can accommodate up to five people is hunched on its back.

That's right, this is a survivor of Wang Qiang's ex-time traveler! Two days ago, a meteor came from the sky. The elder of the survivor learned that the envoy was coming again and decisively sent out the last warrior of the tribe. All logical directions are in the prediction of the super player.

I have to say that like all excellent time travelers, his ex's development history is very outstanding. He is a doctoral supervisor at an agricultural university. He is proficient in everything from wheat, sorghum, rice, corn, soybean hybrid rice to genetically modified rice. He came to the game because of an accidental car accident.

Even though he was an agricultural expert, his basic astronomy and geography knowledge was also knowledgeable. He watched astrological constellations at night, found the locations of the North Star, the North Dipper, and some zodiac signs, and calculated his latitude position - it should be the Yellow River area of ​​the Central Plains. Then he also calculated from the locations of the North Dipper, which is different from later generations, that he might have been ten or twenty thousand years ago. This was the end of the fourth season of the Ice Age, and it was also the period when the earth's climate began to warm up and human civilization began to bloom.

The Yellow River alluvial plain during this period is undoubtedly the most suitable area for the development of human civilization. The low-lying areas in the middle and lower reaches of the Yangtze River are wetland swamps breeding from mosquitoes and flies after the retreat of glaciers. The environment is very harsh. However, even so, the archaeological community has long discovered that the Jiangxi Xianren Cave on the banks of Poyang Lake in the lower reaches of the Yangtze River during this period existed in human tribes, but it is too far away from itself. As for the Yuchanyan, Hunan, known as the ancestor of rice, it is even further away, and it is destined to have no intersection of civilizations in the early stage of the game.

The doctoral supervisor understands the rules of the game and knows his own abilities and strengths. Of course, he also has taken measures to deal with the crisis in five years - that is, to establish a country in agriculture, use its population advantage to destroy the maneuver advantage of nomads. As long as the population increases, productivity increases and there are military walls.

The other party is a nomadic people, and the population is destined to be insufficient. If one dies on a thousand miles of expedition, one will be less than one, so they cannot afford it.

The doctoral supervisor soon found a kind of wild wheat in the wild, very similar to the barley from the Qinghai-Tibet Plateau in later generations. The output is not guaranteed, but its vitality is definitely as strong as weeds, so the staple food is it. The game system obviously configured the opening location according to the strengths of the time traveler.

At the same time, the doctoral supervisor also discovered a huge hidden danger - a wild elephant herd! No, it is much taller than the elephants in later generations, and it may be a mammoth!

The doctoral supervisor has become accustomed to the fact that there are only elephants in the small area of ​​Xishuangbanna in China. I really didn’t expect that there are elephants in the plains of ancient China. In fact, if you think about it carefully, the story of Chinese chess, Cao Chong calling elephants, and Shun Geng Lishan all show that there were elephants in ancient China, let alone prehistoric era 10,000 or 20,000 years ago.

As a time traveler, the blog supervisor wanted to be Shun for a while, so he fell in love with the potential of elephants: he could farm and transport in his spare time, fight to intimidate the enemy in wartime, and also eliminated a great harm to the wheat fields that were about to be developed on a large scale. Moreover, the tribe members also had rich experience in hunting and driving elephants from generation to generation.

The best time to sow barley is to enter summer, so the hidden dangers of elephant groups must be eliminated before entering summer. So under the careful planning of various traps by the doctoral supervisor, elephant groups around the tribe were attacked and fell into large pits dug and arranged in advance to be kept in a trap.

Hunger is always a way to tame wild beasts, so even if the doctoral supervisor is an outsider in this field, he has achieved considerable results. As for those really unruly adults, of course, they did not expect them to tame. They exist as food. If they were kept in captivity, they would free up a large number of people from the tribe to develop farmland.

After getting the wild elephant done, the doctoral supervisor completely established prestige among the tribe members, and the subsequent key "cultivation land" will be more convenient to continue to be implemented.

As early as the process of searching for wild wheat, the doctoral supervisor selected the terrain on the alluvial plain by the river, a large area of ​​lush grass and trees. He directly burned the weeds into wood ash with a prairie fire - the legendary "slash-and-burn planting"! Burning so much does not mean planting so much, but leaving a few more pieces of land for the "turning" of the wheat field for the next year.

After carefully examining the humus layer of the land, the doctoral supervisor found that the situation was not optimistic. The soil in this era was a bit similar to the permafrost in Siberia, and it was actually more suitable for growing potatoes. But the potatoes are native to South America, so we can only make up for it with strict management.

Therefore, the doctoral supervisor asked the tribe members to implement their orders as rigorous as training doctoral students, and to practice distances and field management, and to drive away birds and beasts day and night, not to be careless for a moment. As a doctoral supervisor, his leadership education skills are undoubtedly 5-star. Although the tribe members do not understand, they must also be understood in implementation and then in understanding.

During the slack season after sowing, the doctoral supervisor used stones to build a simple stone kiln, dig river mud and fired pottery to prepare for storing grain and improving dietary hygiene. With the pottery boiler, copper and salt can also be smelted.

In the Yellow River Basin, the most famous inland salt production area is Yuncheng, Shanxi, and there is also copper mine in the nearby mountains. It is said to be the main city of the Chiyou Jiuli tribe. But I was helpless. The doctoral supervisor only had five years of valuable development time. With prehistoric transportation conditions, there was no time to specifically look for minerals. So there was only a very backward way to extract salt from nearby stones. That is, when burning pottery, I would burn a pile of gravel mixed with red, purple and yellow colors. This is the stone containing rock salt components. China's rock salt distribution is very wide and rich.

It doesn't need to be burned for too long, otherwise the other ingredients will be burned into lime, and then the boiled gravel is put into the boiling pot. The water cooked here is a brine with a little salty smell. Then pour the brine into another jar and then cook, which is equivalent to purification in one go.

In short, it is to constantly add ingredients to cook the brine in the second jar, which is enough. There is no need to completely boil it dry and extract salt crystals. Although it has a strange smell, it is a "treasure water" rich in trace elements of the human body, such as calcium, magnesium, iron, etc. Just add a spoonful of to the broth and the taste immediately leaps. In fact, this is the principle of the delicacy called "Stone Pot Fish".

At this point, the doctoral supervisor was worshipped like a tribal god, and this brine has become the supreme treasure of the tribe!

If this result is regarded as a god, then the subsequent path to the transcendent is completely the transcendent's path to the super god.

With the clay pot, the doctoral supervisor began to correct the defecation habits of the tribe, that is, he had to learn to use the "toilet" to hoard fertilizer.

Then autumn came, and the wild wheat in the fields was harvesting! The doctoral supervisors burned hundreds of clay pots and couldn't even fill the wheat.

The tribesmen cheered, but the doctoral supervisor was really not satisfied. Because these were the first generation of artificial wheat cultivated from the seeds of wild wheat, which only demanded quantity and quality. As long as they passed their own strict next round of seed screening, the harvest level next year will definitely be far beyond expectations.

But the problem is also that the tribe lacks manpower. Building city walls and digging moats are also major projects, especially in the prehistoric era when tools are backward, it requires huge manpower.

Then, as a time traveler, of course, you should do something about a time traveler, that is, ride ten tamed young mammoths to recruit and intimidate the surrounding tribes.

Of course, if you destroy the other party, it is a very simple thing, but it is really difficult to recruit the other party! Because the language is not understandable! That's right, although the time traveler has the system's own language correction, this is only limited to this tribe, and it won't work for other tribes!

However, doctoral supervisors are five-star talents who are proficient in two foreign languages ​​and have a certain degree of drawing skills. Not having language is not the same as being unable to communicate. Didn’t there be many mural narratives in the prehistoric era? This shows that whether it is prehistoric humans or modern children, comic strips and even hieroglyphs are the most effective means of communication.

At the same time, the doctoral supervisor has realized that in prehistoric times, God is a common belief, and if you want to regain the other party, you must show that you are God.

So on the elephant bamboo building that the doctoral supervisor rode, there were various flash ceramics hanging, various flowers and ivory, and he made a loudspeaker microphone himself. As soon as he spoke, all the tribesmen and soldiers around him kowtowed. This pretentious situation was the ultimate prehistoric condition. Although the doctoral supervisor was an agricultural science worker, he didn't want to pretend to be superstitious, but he was indescribable and couldn't extricate himself.

Then he captured a few people alive, invited them to have a meal of wild wheat paste and brine broth, and then asked them to see the comic strips of "The Demon Cavalry is coming" and what to do. He sent a pot of wild wheat back to show his strength and goodwill to cooperate.

In short, after being so painful that he was convinced by virtue, the doctoral supervisor was worthy of being an excellent time traveler. In the autumn of the first year, he moved to the two nearest tribes to live there. The mammoth perfectly exerted its strong diplomatic ability and moving ability.

At this point, the population of the tribe exceeded 2,000! Then we started to strengthen the relationship between men and women, read comic strips and learn to produce, etc. Although everyone didn’t pinch it at the beginning, as long as there was food, there was a god, and there was little details about the language barriers.

With a good start, the next thing is snowballing. The population, city and arable land area of ​​the doctoral supervisor has expanded rapidly in the next two years, and the focus of the doctoral supervisor's work is also on forming a training army.

However, the doctoral supervisor is not an expert in cold weapon warfare. Although he also knows from common sense that crossbows are the most effective means to deal with nomadic peoples, bows and arrows seem simple, but they are very troublesome to create under the conditions of prehistoric times. The bow with a range of up to 40 or 50 meters made by bent wooden poles is nothing but lethal.

Then just practice spear throwing hard, mainly attacking spearheaders. The Roman Empire had infantry specializing in spearheading, and there was also a world record of throwing 100 meters in the Olympics. The doctoral supervisor believed that even if the other party was a nomadic people, their bows and arrows should not be much developed, and they could completely suppress them in numbers.

Of course, the idea is simple, the road is tortuous, and it is really a struggle to expect this group of unrestrained prehistoric adults to become a real army. The doctoral supervisor had to put his hope on children and started from childhood. So the doctoral supervisor selected a thousand young children with relatively strong physiques from tens of thousands of people in the tribe to focus on cultivating, ensuring nutrition, and named the Youth Pioneer.

Of course, the premise is that they can wait until they grow up. As a five-star time traveler, even if they don’t understand military affairs, they still have confidence.

During this period, the doctoral supervisor went out to prospect many times. The farthest time he rode an elephant to a hill seven days away, but perhaps because he was not a professional prospecting person, he returned empty-handed every time. As a result, there were many tribe-related disagreements in the tribe within half a month, which made the doctoral supervisor feel the helplessness of "no home to be without a boss for a day". And what if he found a mine? Could it be that he would give up arable land and move to the mining area for a long distance?

Then, by the fourth year, the problem arose! The grain produced by the tribe is already difficult to supply 40,000 people to the city.

It was not until this time that the doctoral supervisor suddenly realized that he fell into the "Malthus Trap"! The general idea was "the population and labor force increased, so the grain output increased, and then further stimulated the population to increase, but the result was still not enough to eat! The rate of food growth could never keep up with the rate of population growth. At that time, famines would break out in humans, wars, the population would drop, and cycles would continue..."

Although this theory is controversial, and the developed fertilizer agriculture and high-yield genetic crops in the 21st century have greatly alleviated this trap, the fact is that many countries still have not gotten out of this trap.

What should I do? All the elderly, weak, sick and disabled people are abandoned? Prehistoric humans also did this.

The inbreeding situation of tribes in prehistoric times was serious, with the proportion of this weak population as high as one-quarter, which is indeed a huge grain burden. The doctoral supervisor with great "shen power" did not need to care about other people's evaluations, but the doctoral supervisor was still a civilized modern man after all, and could not be so cruel. He gave these 10,000 people, a few elephants and a large amount of grain tools, materials and seeds, and asked them to migrate to the south to find a branch base in the mountainous areas. Only the mountainous areas could discover copper ore, which could be regarded as "waste utilization" laying the foundation for the later stage. If there was a later stage.

Then, the large tribe who came into battle lightly finally ushered in a great harvest in the autumn of the fifth year! At this time, the tribe was full of soldiers, and everyone prepared bamboo armor and bamboo shields, and even the battle elephants were covered with bamboo armor. The doctoral supervisor believed that with the level of bows and arrows in the prehistoric era, they could not penetrate these armors at all, and they would never lose when fighting head-on.

Then the people sent to the mountainous area to open a branch base brought good news from afar. The copper ore and iron ore were not found, but a hot water was found underground. The whole valley was steaming like spring all year round. The grass and trees were very lush. There were wild melons, wild fruits and mountain deer all over the mountains. Not only could 10,000 people eat enough, but elephants could also eat enough.

The doctoral supervisor was surprised. He had already made preparations for humanitarian destruction, but he didn't expect that they would have a major discovery a year later! They must have discovered hot springs, and the doctoral supervisor only thought of one place where there are hot springs in the southern mountainous area, Lushan, only the tourist and sanitation resort! But Lushan in later generations should be next to Poyang Lake in the south of the Yangtze River? Did they cross the river with 10,000 people?

Don’t worry about the river channel problem 10,000 or 20,000 years ago. If you really find Lushan, then there are Daye Copper Mine and Jiangxi Copper Mine nearby! Especially Daye is less than 200 kilometers away from Lushan, and the terrain of Lushan is steep and easy to defend but difficult to attack... By the way, you can build a ship to find the Xianren Cave from Poyang Lake, and you can also acquire another tribe. This is the ruins of ancient tribes with rice that have been left for more than 10,000 years. How many people are there?

At that moment, the doctoral supervisor wanted to move the capital! But it was too late, and the nomadic peoples came in winter.

It’s really hateful and lamentable! I only had 5 years to collect the population and cultivate crops, and I spent most of my energy on growing crops. I didn’t have time to explore the way. It took me 5 years to discover this prehistoric era!

But he was unwilling to be a doctoral supervisor at all, so he decided to move a thousand young vanguards in the tribe just in case. After all, the war is coming to an end and they cannot play a role in their youth. It is better to let them go on a long journey to exercise.

...

Then winter came, and when the frost of day by day frost frozen the river surface, the nomadic people arrived as scheduled. Not many, two or three hundred cavalry sparsely stretched for several miles, looking like a wanderer scattered. This made the doctoral supervisor who had been preparing for war a lot of relief.

Then, something was wrong. These knights never wandered outside the city walls and never fought. This made every time the powerful doctoral supervisor who was equipped with a powerful city army could not be used.

The only time I chased him very close, the doctoral supervisor finally saw the other party clearly. Every knight was extremely majestic, probably over 1.9 meters tall. I couldn't tell before that it was because their horses were also very large. And what is the average height of the strongest man in his tribe? About 1.6 meters! What does this mean? If there are too many people, they will be killed easily by them if there are too few people!

Then, the doctoral supervisor stopped chasing him and just watched them hunting, fishing and barbecuing outside the city every day. The other party's cunning was beyond their imagination, and their strength was even more beyond their imagination without fear of the cold.

The doctoral supervisor realized that he was going to lose! The other party made a big fortune by making a big fortune. Hundreds of people came here to hunt a few deer a day, and how much food should they eat in 30,000 people? If they just consumed it until tomorrow summer, and they wouldn't sow it, wouldn't it be over? What they can't afford is actually themselves!

...

There is no suspense. In the summer of the sixth year, the exhausted time traveler launched the final national general attack. When hundreds of sharp arrows had an incredible range, accurate and powerful fire-gathering shot through the bamboo armor that they thought they were safe, and shot themselves into a hedgehog, a long-lost car accident scene burst through the entire body!

The time traveler instantly understood that he was a completely backward tactical system, and even if he entered the Iron Age, he would not be his opponent!
Chapter completed!