Because the buffalo was the main source of the Indians food. They also used the buffalo's skin for their tepees. Wherever the buffalo moved, the Indians moved.
The class system, migration from farms to cities, Social Gospel movement, role of settlement houses and churches provided services to the poor. Between the Civil War and World War I the American cities underwent through dramatic changes in shape, size, and changed in aspects of who was there, and how these individuals were scattered in the city. The driving force behind the urban changes was industrialization and the emergence of industrial slums on the edges of expanding business districts. The slums were assumed to breed illnesses, crimes, intemperance, and immorality. It resulted in the rise of progressive social reformers who developed new methods of helping the poor, who were mostly immigrant communities to be able to adjust to a rapidly changing, increasingly complex urban society.
Mansa Musa establish Mali as a center of Muslim culture because:
C. He brought Muslim scholars, artists, and teachers to work in Mali.
He brought architects, merchants and scholars from other territories; and also embarked on a large building program, building universities, markets, libraries and mosques, establishing Mali as a reference of culture.
Chlorine and Mustard gas are types of poison gas, sometimes used during chemical warfare. For example Germany introduced their usage against the Allies during WW1.
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