Which two emperors ruled at the same time for a few years?

This illustration shows a building in alexandria during the hellenistic age. the building in this illustration was the first research library. a school led by aristotle. the palace of alexander iii. a famous lighthouse.

Legacy of the new deal is positive or negative

Concerns about the environment prompt congress to pass a $1 surcharge tax on each gallon of gasoline. which statement best describes the impact of such a tax