Slavery started because people liked having other people work for free, so they enslaved others. They were brought by ships from Africa. They would usually work on farms and ranches. The jobs were different because of the climate. One type of climate made it possible to grow cotton, another to grow tobacco, another for crops, and so on. They were important because they were free. Since wealthy land owners didn't have to pay workers, they got extremely rich because they had almost no losses at all.
Answer:
Nationalism and imperialism encouraged each European nation to pursue its own interests and compete for power. ... The alliance system pulled one nation after another into the conflict.
Explanation:
That's because they were preparing for the biggest war in human history. This was the policy of militarism where building up a military was necessary to ensure that the people could fight against others. The number of soldiers in European armies increased twice in size in only 20 years between the 1890s and 1910s.
The earliest Chinese people did not have to worry about invasions from foreign countries because of their strong army and geography. The Chinese army present in ancient times were very strong and able to defend their lands. Chinese also build china wall in order to protect their lands from the invasion of other people. The geography of china also made difficult for the invaders to capture china.
