A slave is a person that belongs to another one and is treated as property. Serfs, I'm not so sure about this now, were renting the land out from the landowners.
Change<span> over time occurs for many reasons, but three phenomena that tend to cause it are: ... in the Arabian Peninsula in the 7th century
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The Supreme court decided in Pierce Vs Society of sisters that an Oregon public school law is UNCONSTITUTIONAL.
In 1922, Oregon state made a law that children between the ages of 8 and 16 must compulsorily attend the public school in their districts. The society of sister and another private institution who had private schools in the state challenged the law and they named the governor of the Oregon state at that time [Piece] as the respondent in the case. The court held that the law is unconstitutional because it denied the parents and the guardians the rights to decide the type of education that their children get.
The main reason why external criticism is so important when it comes to analyzing data is because as the handler of the data yourself, you can quickly develop a bias and "expect" a certain outcome, which might affect your analysis.
