Explain in detail how Galen, a physician during the Middle Ages, expanded on Hippocrates’ theory of the four humors and explain what he believed each humor represented.

The book by john kenneth galbraith discussed the growing gap between the increasing private wealth in the u.s. and the stagnant condition of resources allocated to the public sector.

How did the actions of tsar nicholas 2 and his wife lead to revolution in russia

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?