An important duty of the president is "negotiating treaties," since this duty falls to the executive branch, and the president is in charge of this branch (although this specific task is often delegated to the State Department).
Answer:
In Asia, specifically china.
Explanation:
The issue known as the Black Death killed many in Asia, all type and sorts of disease and virus come from asia to other continents which is how the recent sickness started.
In this similie Adams is referring to the memory of Lincoln.
