<span>Arriving in New Orleans, keelboat operators would sell and trade to acquire a profitable cargo of agricultural and other manufactured wares, Kentucky whisky, and farm .... But after a while thesteamboats so increased in number and in speed that they were able to absorb the entire commerce; and then keelboating died </span><span>
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The most serious flaw of this design, which investigates happiness across the lifespan and involves going to the mall and asking people of a variety of ages if they are happy or unhappy, is that they have not defined happiness or how it will be measured. Happiness is a subjective thing, and people will maybe feel sad despite the fact that everything is all right.
Based on the sentence of the excerpt,
The main purpose of the final sentence from Thomas Paine's common sense would be :
To indicate that the American colonies can establish a better government thana monarchy
Hope this helps
Sumerians invented cuneiform; the Egyptians and Mesopotamians invented pictographs, and so on. These were the foundations of writing as we know it. Over time, different cultures develop different writing systems, which eventually lead to modern writing systems, having been enhanced over time.