In colonial times, the New England colonies had cold climates, a short growing season, and brittle soil, which could grow little crops. Therefore, the colonists has to result to a different method to sustain their economy and turned to fishing, lumber, shipbuilding, and other industrial occupations.
They crossed the Atlantic Ocean.
The introduction of coins as Greek currency was a crucial economic advancement that allowed for expedited and simplified trade between varies countries within Greece's domain.
In this similie Adams is referring to the memory of Lincoln.
I taught the one lesson we actually needed. Kindness hence 'kind'ergarten