It seems that duels are no longer fought because of a combination of both changes in law and in fashions. E.g. Tom Reiss' The Black Count: Glory, Revolution, Betrayal, and the Real Count of Monte ...
Between 1917 and 1930, homosexuality was decriminalised in the Soviet Union. From the Wikipedia article on LGBT history in Russia: The Russian Communist Inessa Armand publicly endorsed both ...
In what ways did the rise of a true middle class in Europe during the late 19th century become apparent?
The late 19th and early 20th centuries were very transformative for Europe with the rise of a real middle class. Typically before this the middle class was more of a bourgeoisie and not the middle ...