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.
C. The Third Agricultural revolution is also referred to as the Green revolution
Answer:
Their duty is to protect their king and his kingdom, also to show honor. They represent the kingdom and protect it with their life.
War with Mexico and the alamo and it also sparked the transcendentalist era, and plus it was one of the earliest examples of civil disobedience by henry David Thoreau