Spartan society operated on a system of mass enslavement. The peoples of Messenia were enslaved as helots, and worked Spartan land so the citizens spartiates could , in accordance with the rules of the mythical Lycurgus , be fulltime professional soldiers. As this went on, a series of revolts made the Spartans relise that to keep the helots pacified , Sparta would need to continue its tradition of training all young men to the point of military excellence
The Panama Canal The Spanish-American War had shown the need for a shorter water passage between the east coast and the west coast of the United States. After helping Panama gain its independence from Columbia in 1903, the United States purchased a 10 mile wide strip of land through which the Panama Canal was built.
The 25th Amendment outlines the rules of succession to the U.S.
Presidency and Vice Presidency in the event of either or both of them
dying, withdrawing or being removed from office.