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I might be wrong but diversity and safety are two things i can think of. If what we're seeing is a fire exit then it displays the safety issues found in early workplaces. and there is also a lack of diversity between the workers on the stairs.
They were accused of witchcraft. Many people back in those days feared it. However, anyone could accuse someone of witchcraft in those days without evidence. Some were accused because others had a grudge against them. Some people thought that because some of the women were convulsing or acting out of the ordinary that they must have been involved in witchcraft. Punishment was carried out to discourage others from getting involved in the wicked religion so to speak.
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The Anglo colonists, as the name implies, were people from the United States who were mostly of British descent. They can be divided in two groups: those who came from the neighboring Louisiana, and expanded the slave plantations in Eastern Texas, and those who came from Appalachia, and founded small farms in Central Texas.
The Tejanos were the original colonists of Spanish descent, who came from other parts of Mexico. They spoke Spanish, were catholic, and had ties to Latin America. However, they were also part of the independece movement in Texas, but many of them opposed the annexation of the state to the United States (this was supported en masse by the Anglos for obvious reasons).