it caused lots of tension and stress/anxiety due to the looming threat of nuclear war
The Qin dynasty was the first dynasty to start connecting the various walls into a greater whole. That happened around 221 to 206 BC and was done under the reign of Qin Shi Huang. Though the wall was later improved still by other dynasties, it was during the Qin dynasty that the Great Wall of China was first formed into a cohesive structure.
The Enlightenment Philosophers, but especially John Locke, influenced Thomas Jefferson as he drafted the Declaration of Independence.
Locke was a major proponent of the belief that humans have natural rights and that we enter into a social contract in return for giving up some liberty to the government in exchange for protection of the natural rights.
Jefferson used this belief when he wrote about "life, liberty, and the pursuit of happiness" cribbing Locke's "life, liberty, and the pursuit of property"
A: it was the beginning of the practice of "judicial review."