In his 1776 book The Wealth of Nations, Adam Smith argued that, in a free market, wages and the prices of goods would
naturally balance themselves.

four sitting presidents have been assassinated while in office but the first was abraham lincoln,

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.

france,russia and prussia had absolute monarchy and it meant:

when louis xiv inherited the throne, he was able to serve as his chief minister.louis xiv ruled as an absolute monarch.