Historians work to methodically dissect the past to help us understand the present and avoid making similar mistakes in the future.
The base job of a Historian is to break down a historical events into parts to understand how the historical event or historical arc could have occurred as it did. This could range from "Why did the Japanese bomb Pearl Harbor" to "Why did the Union win the Civil War"
Each question has answers that can help future generations understand the implications of their actions.
During the first half of the nineteenth century, farm girls and young women from throughout New England were recruited to work in the textile factories in Lowell, Massachusetts.
Answer:
Workers endured long hours without rest breaks, had little access to water or restrooms, had toxic pesticides sprayed on them, and endured hard labor for very little pay and no health benefits. These injustices communicated to the workers that they were subhuman and not deserving of even the most common dignities offered to others
They used triangular sails that allowed these ships to travel better.
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The Gelug sect of Buddhism is the newest sect of this religion/philosophy. It is the one that actually has established the Dalai Lama, which is the most important figure in this sect. The Dalai Lama is viewed as the incarnation Avalokitisvara, a Bodhisttava of Compassion. Also, the Dalai Lama is considered as the spiritual leader of the Gelug Buddhism and he is the highest religious authority, which over time even became a political authority. This sect of Buddhism has become dominant in Tibet and Mongolia.