While North America, Central and South America are all part of the western hemisphere, they historically have significant differences. In North America at least in what is now Canada and the US there were about 17 million indigenous people when the Europeans arrived. On the Great Plains and in northern what is now Canada they mostly had a nomadic existence, following the game like the buffalo. In what is now Mexico, and what is now Guatemala and Honduras, the Aztecs and Toltecs built large cities with temples and had sedentary well organized agricultural societies and relatively large populations. This was also the case with the Incas and their cities in the western part of South America.
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the spread of the AIDS virus
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THE PORTUGUESE IN THE INDIAN OCEAN 1497-1557. In 1497 the Portuguese exploded onto the scene in the Indian Ocean. They came first as explorers and stayed as conquerors. ... But, by controlling the entrances and exits to and from the area, Portugal could dominate the area economically and control the spice trade.
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<span>The person who most strongly influenced humane reforms for the mentally ill in the United States was Dorothea Dix, who lived from 1802 until 1887. Dorothea Dix was a school teacher from Maine who struggled at times with her own physical and mental health. This may have contributed to her becoming compassionate towards others who struggled with mental illness. In her lifetime, she founded over 30 hospitals dedicated to the treatment of mentally ill patients. She challenged a prevailing mindset of her day that people with mental illness could not be helped or improved. She was an advocate for the humane treatment of those in mental hospitals. At the time, common practices towards mentally ill patients included neglect, malnutrition, caging them like animals, and physically restraining them in such a way as to cause pain. Overall, Dorothea Dix spent 40 years lobbying the United States Congress to establish state hospitals for the mentally ill. She worked tirelessly to change how society views the mentally ill and to advocate for laws providing proper treatment for these individuals.</span>