It refers to the artists of the turn of the century, that is the art made at the beginning of the 20th century. It mostly refers to modernists and symbolism who created in this period and whose art was full of things like pessimism and cynicism. Modernity in general is associated with it.
The assassination of Archduke Franz Ferdinand that lead to the devastating, destructive period known as WWI.
The best known system is the French Ancien Régime (Old Regime), a three-estate system used until the French Revolution (1789–1799). Monarchy was for the king and the queen and this system was made up of clergy (the First Estate), nobles (the SecondEstate), and peasants and bourgeoisie(the Third Estate).
hope this helped! :)
I wanna say elected legislatures could be wrong