What was the lecture circuit that ralph waldo emerson, henry david thoreau, and frederick douglass spoke at popularly called?

Transcendentalism was the movement that Waldo Emerson, Henry David Thoreau, and Fredrick Douglass spoke on and about. The movement and lectures focused on self-reliance, freedom from constraints on rights, and self-expression. Communities were built around their belief in their philosophy as the guiding force.

The horse latitudes-high-pressure zones about 30 degrees north and 30 degrees south of the equator.-warm air traveling away from the equator cools and sinks-weather tends to be clear and drythe doldrums-low-pressure near equator-air rises and spreads out toward the poles-rising moist air produces clouds and heavy rainthe westerlies-blow from the west-move from the horse latitudes toward the poles.-bring storms across much of the united statesthe tradewinds-blow from the east-move from the horse latitudes toward the equator  -strong, steady winds