Only in March of the Julian calendar will the Gulf of Bothnia begin to thaw. When it is completely thawed and safe for navigation, it will be April.
Hanukkah ended with the first rays of sunlight in AD 29.
The return of sunlight announced many things. As the days became longer and longer, the tribesmen had more daylight time for work.
The tribe also has another tradition, that is, one hundred days after Hanukkah, when most of the sea ice melts, people usher in another festival.
This picture has lasted for nearly half a year for the Ross tribe, and their long boats can sail freely on the thawing sea. The long period of time consumes a lot of people's food reserves. Even if many people carry out winter hunting, every time the thaw approaches, each family
The food reserves of each household will become scarce.
Now, tribe members face new problems.
Only some people in the entire tribe are rich. The rich are often the strongest men and the most experienced fishermen. These people are eager to own a steel sword of their own and also hope to continue to buy soap plots themselves.
In addition, they also need to obtain other consumer products to meet their own needs.
The long boats hidden in the docks are being repaired at an accelerated pace, and some new ships are being built in wooden houses. Fishermen who long for greater wealth hope that the sea ice will melt as soon as possible. They have repaired new hemp rope fishing nets and are ready to show their talents.
The foreigners living in Roseburg are also looking forward to it.
They have already taken action in the snow-covered fjords before the sea ice thaws for the new year's trade.
The various cobblers living in the tribe were extremely busy during the winter of 2018. The arrival of a huge amount of fresh animal skins made all cobbler families extremely busy.
Some tanners lack capital, so they can only get some remuneration for leather processing, and the tanned leather has to be returned to the owner of the leather.
Other leatherworkers naturally have capital and have large families. For a time, the whole family is involved in leather processing.
The owner of the family invested in buying fresh leather from the beginning. They processed it and then further processed it, such as making it into clothes, and the wealth they gained was even more impressive.
However, if the results of the leather processing industry are only sold domestically, it is not a huge profit at all.
The only way is to sell the finished leather to the south. Use deerskin to make clothes, and decorate the collar and cuffs with fox skin. A leather coat can even be sold for one gold coin.
If you take another risk and sell it to an area controlled by the Danes, pretending to be a local and sell it, it is possible to get two gold coins.
Youdao means finding wealth in danger, and everyone knows this truth.
Once the powerful people among the Danes find out, his life may be lost on the southern coast of the ocean.
Most cobblers don't dare to take risks. They just want to sell their skills and start a small business safely. Life is like this day by day. Unless there is some real pressure that forces them to live no longer, cobblers will become pirates.
Do some looting.
The tribal craftsmen all have this attitude towards life.
But for foreigners living as guests, the situation is completely different.
Foreigners would not and could not really join the Ross tribe. They were allowed to live in Rossburg, but they were ordered not to reclaim land for planting.
Of course, the Russians can only plant some onions that are cold-resistant and can mature quickly, and they will not deliberately plant other onions.
The residents do not feel discriminated against at all, because their identities are always very similar - fishermen or pure businessmen.
Otto needed these visiting merchants, who were important mediators for communication between his tribe and his southern allies.
With the existence of these guest merchants, Otto felt that he no longer had to personally organize a fleet to go to the important activity area of the Siiya Tribe Alliance, that is, Lake Malaren, and personally sell the goods from the far north.
Over the years, residents sold their remaining goods to visiting merchants. When the ice and snow melted, the merchants transported them to the south for sale.
In this way, the Russians do not need to risk being attacked, and the goods in their hands can be quickly turned into silver coins. Why not?
Besides, everyone is more willing to look for opportunities in the East.
Many tribesmen sold all the small animals they caught in winter, the meat was eaten, and the leather was immediately exchanged for silver coins, and even a big lump of soap.
Finally, a large amount of silver coins from visiting merchants found their way into Rurik's hands.
Now the situation has changed again, and a large amount of silver coins have begun to flow into Clavarson's blacksmith shop.
After Hanukkah, the entire tribe realized that Rurik's dagger was made for the Kravassin family, and a large number of orders followed.
Clavarson encountered the most prosperous business opportunity since his ancestors started blacksmithing. He engraved all orders on wooden boards and collected one-tenth of the deposit. Unexpectedly, the deposit alone was as much as 100
Twenty silver coins.
To make a new stelsvard, also known as a steel sword, it costs sixty silver coins no matter how you use it. Each sword is very expensive, but it can cut through all the iron swords without being hurt, a huge tactic
Advantages attract all warriors.
The poor warriors were envious and eager to get more money in the new year. The wealthy warriors paid the deposit as soon as possible and were eager to get the steel sword as soon as possible to see if it works well.
Time has entered January, and life is still cold and boring for Rurik.
Youdao is that the coldest period in the Northern Hemisphere is winter, and the climate in the Roseburg area is even more severe at the edge of the Arctic Circle.
Even so, the tribe is still operating at a very low efficiency. Although people still freeze to death, families with a little wealth are still alive and well.
The severe cold forced Rurik to stay in a warm place, and he decided to do some new tricks, which was to take advantage of the plenty of time to first cultivate some knowledge about Rumia.
It is necessary for her to step up her study of rune letters and Roman letters, and be able to smoothly convert characters.
I started to teach her the writing and usage logic of Arabic numerals. Since it was actually her first time learning, everything had to start with the addition of single digits.
In the peaceful evening, Rumia returned to the priest's longhouse after grazing, and sat obediently in front of Rurik.
"Asta, I'm back. Regarding the matter you gave me."
"Have you finished your review?" Rurik asked with a sullen face.
"I know it. I accept Asta's test." Rumia sat down cautiously, her subconscious frown clearly showing her nervousness.
Hehe, her cautious look is so cute.
Placed in front of the two of them was a dry pine board, which was actually scraps from shipbuilding. Rurik needed some brighter writing materials than oak, not even rough yellow paper. Now, this whitish pine board might
better.
Paper can be made! Rurik knows that theoretically all the materials for making paper are available. He tries to purify various fibers from plants, crush them, and the fiber flocs settle into a thin layer.
After dehydration, it is the original paper.
The so-called paper is probably an accidental invention during the processing of China's silk handicraft industry. Up to now, the papermaking industry in the East has been very developed.
The Western world did not invent it out of thin air. It is not surprising that the Eastern Romans still think that the so-called silk is made of a special plant, just like flax can weave cloth.
Rurik cut some black charcoal blocks into some carbon pens with a knife.
For early sketch artists, the brush in their hand was a piece of carefully carved charcoal. There was nothing wrong with Rurik's approach, but he just had to wash his hands after using it.
He had already crammed basic arithmetic skills into Rumia. After two weeks of cramming teaching, Rumia not only understood how to write all the numbers from 0 to 9, but theoretically she already knew how to calculate within one hundred.
"I will give you ten questions, and you must calculate the correct answer for me. If you make a mistake, do ten squats for me. If you make a mistake, it will increase by ten!"
"Okay...ok."
Rumia swallowed deeply. In the past few days, she had been corporally punished by her little master for making mistakes. There were ten questions every day. If she made a mistake, she would raise her arms forward, squat down and stand up ten times. The worst one was done by herself continuously.
Fifty!
It was a really bad feeling. I was so tired that I was out of breath, and my stomach was suddenly hungry. The worst thing was that the little master would not give me any food as compensation.
Ten arithmetic problems are written on the pine board. The results of these problems can be calculated instantly in Rurik. It is really stupid to not be able to calculate the answer quickly by mental arithmetic for a mere addition and subtraction calculation within a hundred.
But for Rumia, it is a severe test. As simple as 20+25, she has to think about the correct answer.
We can’t say that her IQ is stupid or anything, just because she should have been exposed to these things when she was five or six years old, but due to the limitations of the times, I am afraid that she will be illiterate all her life. A ten-year-old child is equivalent to a fourth grader.
, she can master multiplication no matter what.
Rumia, she already knows what the plus sign is, what the minus sign is, and what the equal sign is.
Pure numerical symbols were too abstract, so she had to use a thin wooden stick as a pen on the dry land on one side to perform simple calculations.
Yes, Rurik also gave her the method of checking, so that the addition of ten digits was divided into the addition of two single digits. She bent her head to check, her movements were clumsy, and a few strands of black hair hung down from her forehead.
, and the braid hanging on her shoulders, she looks really cute.
"Ah! Why do I feel like I am helping my daughter with her homework? This girl is really worrying... She is quieter, very good, very good..."
Rurik just watched her movements, his hesitation when writing, and the sudden frown on her young face. The result that an adult can easily get if he feels sad must be a disaster for a child.
"Write quickly, don't hesitate."
After saying this, the girl's nervous right hand drew a deep horizontal line directly behind the equal sign.
"Erase it and write the answer." Rurik's serious order made her even more nervous.
She finally finished answering the ten questions, put the charcoal pen on the ground, stretched out her hands full of toner, and raised her head cautiously: "Asta, I... I'm done."
"Very good. This time you got all the answers right for the first time."
"Ah I!"
"You succeeded, Rumia."
Rurik's deliberately tense face revealed a smile, and Rumia's tense face also turned into a long-lost smile.
"So far you have successfully completed addition and subtraction calculations within one hundred. You are faster than I thought. I will give you some rewards, Rumia, and you should also have brand new summer clothes. I will buy you one
The most elegant one."
A piece of clothing? Rumia also thought about these things. Since the little master was so thoughtful, she immediately knelt down to express her gratitude.
"Get up, Rumia. Don't think that completing this is a big victory. Everything is just the beginning. I will start now and teach you multiplication. There are many other things that other people don't know at all."
In this time and space, the original intention of an ordinary person taking the initiative to learn mathematics is probably to keep better accounts. The boys of the Ross tribe will always follow their fathers and understand basic mathematical knowledge when they grow up, which can be used in future life. After all, everyone
Various currencies are used, which in a sense are gold, silver and copper of different specifications. The weight of precious metals is used to measure the price of goods. As the future heads of the family, the boys can only learn arithmetic if they don't want to be cheated by profiteers.
The mathematical knowledge used for ordinary trade is too low-end, just basic arithmetic in complex mathematics.
Mathematics, it can be said to be the foundation of all kinds of science!
Multiplication and division were not commonly used in business dealings between the Russians and their allies.
Rurik was different. He insisted on teaching a woman multiplication and division, as well as more advanced things, including but not limited to pi, plane geometry, trigonometric functions, solid geometry, and elementary analytic geometry. In short, an Eastern high school student can learn
No matter how much mathematics knowledge you have, it should be instilled into this poor Rumia in a short period of time.
What is the new trick to promise father Otto? This is the new trick!
It is my purpose to cultivate Rumia into a child with high IQ through cramming teaching in a short period of time.
So, Rurik started teaching Rumia multiplication tables.
The pine board covered with toner was wiped clean with linen cloth. Rurik quickly drew the table and wrote the numbers on the matrix. As long as it was not wiped off deliberately, the multiplication table on this board could be naturally preserved for a long time.
The task Rurik gave Rumia was to learn it in the shortest possible time.
This is a major task. In order to help her master it earlier, we first gave her the multiplication table!
In ancient Norse, counting from zero to nine, the pronunciation is highly similar to modern English thousands of years later. The pronunciation of numbers in Norse also has two syllables, but this is not an obstacle to the implementation of the multiplication table. On the contrary, because there are two syllables in the number pronunciation
The pronunciation and formula can be arranged into rap, and the interesting rhythm is beneficial to learners' memory.
It took Rurik two days for Rumia to basically master it. After all, she was already a ten-year-old child. Although it was her first time learning, her brain was better developed than that of a five-year-old child, and she was better able to accept knowledge.
This is what is called that a child who goes to elementary school at the age of nine or ten for some reason can learn all the courses of elementary school in three years and successfully catch up with the progress of junior high school.
Rumia has just learned how to use the multiplication tables. It still takes a lot of time to practice in order to understand abstractly and quickly give answers to Rurik's questions.
Fortunately, Rumia didn't need to study anything else. She could use this multiplication table board to study all day long except for sleeping and eating, even during grazing time.
She didn't dare to disobey her little master's order, she just wanted to understand this hard and boring job as soon as possible.
She is not a learning robot who has no feelings.
It was a cold and boring grazing day, and the daylight hours were still short. Now there was no priest to monitor him, no one to worry about his escape, and no one to help him manage the deer herd.
There are only fifteen deer in the herd, and each deer has a wooden sign hanging around its neck and an iron piece that jingles when the deer moves.
The deer was leisurely digging through the snow and gnawing grass. Rumia leaned on a pine tree, paying attention to the deer and the board.
"The deer didn't run away. They... what happened to them? They got into three piles, five in each pile? Huh? trefearfetn."
A section of the multiplication table in the Norse pronunciation version came right out of her mouth. Now, Rumia opened her eyes wide, as if she had discovered a treasure, and the way she looked at the road completely changed.
She learned from her young master that multiplication and division can perform more complex operations. She already understood that the simplest purpose of learning these knowledge that ordinary people in the tribe could not touch was to help her master manage his increasing wealth in the future.
She couldn't understand the meaning of Rurik's determination for a while, but now she had realized the true meaning of multiplication on her own through the changes in the group of fifteen deer grazing leisurely.
"If the deer herd becomes bigger, I will definitely not be able to manage it by myself. I learned multiplication and divided the deer into many small groups, so I can quickly know how many deer I have! Ah, I am so smart. No! It's to stay.
Rick is so smart."
The boring study suddenly became interesting. She held the reins of the deer and artificially divided the deer into groups to verify the correctness of the multiplication table formula.
The calculations were all correct, and her mind was no longer abstract numbers, but living deer. She closed her eyes and recited the multiplication table silently, and in her mind was a group of deer making various matching combinations.
Everything suddenly became clear.
It was February 5th of the Julian calendar, a cold evening, and Rumia happily drove her deer back. She wiped her hands clean with the snow, and excitedly rushed to the longhouse of the priest, and found Zheng personally helping Bo.
Na and Rurik, a soap maker, told him that they had completely mastered the multiplication table.