The period referred to here is called the enlightenment age
It saw the rise of scholars with enlightenment thoughts such as Hobbes, Locke and Rousseau, and Voltaire, who criticized the establishment concept of government which was autocratic,and absolute. The monarchs claimed a divine essence. The enlightenment scholars placed liberties and freedoms in the core of their thoughts and led to the rise of the concept of government by consent which lay the foundation for modern day democracy.
The First Transcontinental Railroad was a 1,912-mile continuous railroad line constructed between 1863 and 1869 that connected the existing eastern U.S. rail network at Omaha, Nebraska/Council Bluffs, Iowa with the Pacific coast at the Oakland Long Wharf on San Francisco Bay.
I’d go withC hope it helps
Who started the KKK? That was the Democrats
racism and the south removing slavery did
they targeted disabled people, black people, people of color, gay people