Answer:
It dropped rapidly because the colonists were taking over more and more land and while doing that they were pushing them out of their land
The Gulf of Tonkin Resolution authorized President Lyndon Johnson to “take all necessary measures to repel any armed attack against the forces of the United States and to prevent further aggression” by the communist government of North Vietnam.
Nixon staffers began to spy on the opposition, including members of the Democratic Party.
Nixon's constant fear resulted in his staffers taking extreme actions to ensure he won. This including developing false rumors about different politicians and even breaking into the Democratic headquarters at the Watergate complex. This paranoia would eventually lead to his downfall, as members of the Committee to re-elect President Nixon were arrested for burglary after trying to steal documents from the Democratic Party.
isaac newton found out how gravity works.
galileo found out how stars moved and mapped them
copernicus found that the sun was centered in our solar system