After the death of Lenin, Joseph Stalin became the leader of the Soviet Union.
Since free trade allows the business market to reach overseas outside their own nations, many business man seek to sell and cooperate with the other nation's business cooperation in order to expand their market and gain more profit. This urged the economy to become global with the economic exchange across countries.
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England's southern colonies in North America developed a farm economy that could not survive without slave labor. Many slaves lived on large farms called plantations. These plantations produced important crops traded by the colony, crops such as cotton and tobacco.
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Throughout the 17th and 18th centuries people were kidnapped from the continent of Africa, forced into slavery in the American colonies and exploited to work as indentured servants and labor in the production of crops such as tobacco and cotton.