Taiwan's population was in a growing stage from the barbaric era to the Dutch occupation period, and then the Zheng pioneering, followed by the Qing Dynasty's great immigration, the Republic of China, and the Japanese occupation period until the beginning of the 20th century.

During this period, the influx of immigrants concealed the high mortality rate of malaria, and in fact, it was not until the Japanese occupation in the early 20th century that there were malaria statistics in the true sense of the word in Taiwan - the Japanese could not stand it, and prepared to kill mosquitoes all over Taiwan, fill in stagnant water, and build culverts......

In 1910, the Japanese counted that in the past five years, the indigenous people of Taiwan died an average of 10,832 people per year, while the Japanese died 221 people, which accounted for 3.62 and 3.28 per 1,000 of the population at that time.

At first glance, it may not seem like a high number, but this is only the mortality rate after the onset of the disease, and there was another statistic at the time that the proportion of Japanese officials who were sick in five years - 907 per 1,000. In other words, in the past five years, almost all Japanese officials had suffered from malaria, and the living conditions of Hermes-Epitek were even worse......

At that time, there was already quinine, and without quinine, the survival rate of these officials would be very low, and the books living in the cold zone would have died of malaria in large numbers like the early Europeans in Africa.

In 1941, 70,000 U.S.-Filipino troops surrendered to the Japanese on the Bataan Peninsula...... There was no other reason, but because of the malaria outbreak, less than a quarter of the soldiers could still hold a gun because the swing was not too serious.

In 1942, all U.S. troops on Kuah Island were infected with malaria, and the reserves of quinine were quickly depleted......

This is the most terrible thing about mosquito + malaria: it is highly contagious, and it is a repeated infection, there is no immunity, and drugs are actually ineffective without fundamentally changing the environment.

In the face of malaria, Taiwan's aborigines are not much stronger than those short people in Nanyang, in fact, everyone is the same, they are covering up the high mortality rate through muscle shows in the Middle Ages - it seems that they can pull out a vote of naked and muscular warriors, but behind this is the average life expectancy of 30 years old, and no one has counted the tribesmen who died of disease and death like mowing grass.

In the 17th century, the situation was so bad, Taiwan was a wilderness, there was no cooked land that had been exchanged for high mortality rates by immigrants for hundreds of years, only the cruelty of fighting mosquitoes to the death every step of the way.

......

To a certain extent, it was the high mortality rate of malaria + work-related injuries that caused certain later generations of peace to pass through the crowd and tear apart the hypocrisy, thus giving birth to the slave trade of the big government.

The basic plate of the crossing people is the Ming immigration, which is the foundation of the regime, unshakable, and in fact they have no choice - from the most basic knowledge of blood, they have already excluded other ethnic groups, not to mention the obvious things such as faith, skin color, and hair color.

Therefore, Traversal now has to establish two population import channels with huge cost differences.

The Ming people's channel is very cheap, and the beggars and refugees of Moyunguan can collect it almost without spending money, even if every Ming person who fattened and sent it to the big staff is responsible for eating meat, clothing, medical treatment, accommodation and boat expenses in Moyunguan, and 50 taels of silver per person is also worth the sky.

The Ming people are cheap, but the status is high: Crossing the public will let the Ming people go to the kiln area to learn technology, go to the army to join the army, but they will not send the Ming people to death, physical + biological double crit - logging and pioneering.

So who will do the pioneering work with high mortality rates? Only to buy slaves to do it.

Since the Han and Tang dynasties, maritime trade has been the most profitable commercial activity, and the 17th century is the era of geographical discoveries, the Age of Discovery is in the ascendant, and navigators around the world are walking a tightrope between high mortality and high profits.

In this era, a boatload of daily groceries, lacquerware, porcelain, pots and pans, homespun cloth, rouge, and sewing needles set off from Daming casually...... Whether the ship goes north to Japan or south to the Philippines, as long as it does not encounter pirates and storms, then the cargo on board can get at least 200% of the profit when it reaches the ground.

This is the characteristic of sea trade, high risk accompanied by high profits, otherwise, you can set up a stall at your doorstep, why should the big and small traders risk the danger of drowning in the storm bandits?

Back to the slave trade.

The current situation is that the Dayuan regime does not have the ability to send troops to the South Seas to catch slaves, and wants slaves to open up the wasteland, so the traversal has no choice but to find Europeans to buy.

Europeans, accustomed to the slave trade, were not so mentally retarded as to equate slaves with groceries.

First of all, slaves don't run into the cabin on their own, and there is a cost to whether the colonists start a war or buy it from the tribe.

Second, slaves are not the same as pots and pans, and slave ships have a huge, unavoidable risk than a general cargo ship: from the day they board the ship, slaves will continue to die in crowded and stuffy cabins, so the slave traders are actually in a race against time to reach their destination before the entire ship of slaves and the entire crew, including the slave traders, die.

This high cost will be evenly distributed to each surviving slave, so without more than 400% of the profits, no one will run such a risky business. The reason is very simple: no one will use the profits of cigarette sales to sell big cigarettes, the risks are different, and the rewards are naturally different.

The Crossing Crowd bought Nanyang slaves from the Europeans, and the Europeans had a reference price.

Historically, after the British currency reform in the 17th century, the ratio of the British pound to silver was 1 to 4.3.

Slave traders obtained a black slave from the west coast of Africa for about 25 pounds (107 taels of silver), and when they shipped it to the Americas, they could get about 150 pounds (645 taels of silver) worth of goods, with a profit rate of 600%.

By the 18th century, the profits of the slave trade had risen further, and after buying a slave for $50 in Africa, it could be sold for $400 in the Americas, with a profit margin of up to 800%.

The above is a historical fact, just open Du Niang and search for it.

Therefore, in some YY novels in later generations, a large number of people can be transported from East Asia to the Americas for just two dollars, which is funny. How brain-dead would Europeans have to be to transport displaced people from more distant East Asia to the Americas than to spend a year transporting displaced people at a freight rate of less than 600 taels per person?

In addition, even if there are crew members sleeping in hammocks, they will die in large numbers during the voyage, so how many of the homeless people crammed into the cabin can survive to the Americas? If there were rest stops along the way to let out the wind, there would not be a large number of dead people, and the slaves would probably have bought three and gave one free, and what did humans invent penicillin.

......

Therefore, under the above price system, the Dutch will not reduce the profits of slaves to the same price as groceries, and if the profits are 200%, they can sell some spices and saltpeter safely, why trade slaves?

Therefore, in desperation, the traversal could only use more than 300% of the profits to tempt the Dutch to trade slaves.

Or send a ship to South Asia to arrest people yourself?

...... Without a large supply base like the Philippines, a ship set off alone, sparks and lightning along the way, and ran to the tropical island to capture people...... This one is more brain-dead, and the cost will be much higher than 300 silver/person, and then take a few lives to cross the master...... This is not unusual at all.

Therefore, there is no such thing as a free lunch in the world, and political correctness is a very expensive and correct way, and if you want to force the public, and do not want to bear the notoriety of "mutilating your ancestors", you must pay a high price now - unless one day the naval guns arrive at the door of the Philippines, and the soldiers roar and start to rush the beach, then the price of slaves will pull out the big black line.