<u><em>A sachem is the chief or leader of a tribe, and having anyone of your community do an act of defection (change loyalty to the opposite side) is the beginning of lots of issues, those including: treason, increasing number of deserters, a weakening tribe, etc. Those are the reasons why a sachem should be concern about defection.</em></u>
The author used imagery in this excerpt!
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a narrow, keelless boat with pointed ends, propelled by a paddle or paddles.
Dr. Elizabeth Blackwell was the first woman to receive a medical degree. She opened doors for womens education in medicine.