How is modern history different than history in 1789

One of the main ways in which the modern study of history challenges earlier histories is that we now have many more primary sources available to us, and many more people with access to these sources.

Explanation:

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a plantation economy is an economy based on agricultural mass production, usually of a few commodity crops grown on large farms called plantations. plantation economies rely on the export of cash crops as a source of income.

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