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Comparative advantage theory states that a country should sell to other countries those products that it produces most efficiently and buy from other countries those products it cannot produce as efficiently.
Benjamin Banneker
An African American almanac author, surveyor, naturalist, and farmer known for his work on early Washington D.C. city plans and for advocating civil rights in the 18th century.
Mathematics
The abstract science of number, quantity, and space, either as abstract concepts (pure mathematics), or as applied to other disciplines such as physics and engineering (applied mathematics).
Mechanics
The branch of physics concerned with the motion of objects and the forces that cause this motion; also refers to the skilled trade of working with machinery.
Yellow Fever Epidemic
A severe outbreak of Yellow Fever, a viral disease transmitted by mosquitoes, which killed thousands in multiple instances throughout history, particularly in densely populated areas.
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