They were important because they were not controlled by the government or the church. Therefore they were free to explore in scientific experiments as much as they wanted without these controls.
Abrogated is a repeal or do away with law, right or formal agreement
Yes, one reason is that America was extremely effective. The second reason is the rich were rich and had awesome lives yet the poor battle and had a hard life.
The period after Reconstruction, the most recent couple of many years of the nineteenth century, was known as the "Plated Age," a term instituted by Mark Twain in 1873. The Gilded Age was a time of change in the economy, innovation, government, and social traditions of America.
Sipi is a hand of bananas