The terms "trial of tears" and "the place where they cried" refer to the suffering of Native Americans affected by the Indian removal act. It is estimated that the five tribes lost 1 in 4 of their population to cholera, starvation, cold and exhaustion during the move west.
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THE GUNPOWDER EMPIRES
The era between 1450 and 1750 saw the appearance of several land-based empires who built their power on the use of gunpowder: the Ottomans and the Safavids in Southwest Asia , the Mughals in India , the Ming and Qing in China , and the new Russian Empire.
Answer: 7.53 billion as of 2017
Explanation: