If taken to extremes, nationalism can create a great deal of international instability and violence. Extreme nationalism can lead to a sense of superiority and even militarism and aggression towards others who are not part of the nation.
Without the ability to read ancient Chinese and Maya text, we would be limited to archeological findings and guesses made based on them. The fact, that we can read ancient texts, let us know for example:
the names and times of rule of many rulers,
the religious practices
some events from the past
some cultural and technological inventions such as their knowledge of astronomy
the social composition of the society
Our knowledge of urban live comes from the description of customs and occational information about who lived where and how much was paid for what services
OA the twenty second amendment was passed to clarify succession
Me personally I like whole class because then I dont lose focus as easy