WW2/Cold war
Followed by the Napoleonic wars and the late Victorian era.
The whole cinema revolution in the last 70s/early 80s. It was the time where sequels were born, blockbuster we know of today were created and a whole host of teen angst films. Wish I could have seen the original buzz/reaction for Jaws, Star Wars, Indiana Jones ect.
USA containment of communism has always interested me , 1950-1975
The one where we owned Africa.
Elizabethan Era.
Middle Ages.
Stone/Iron/Bronze Age.
Easter Rising, War of Independence, Irish Civil War.
Classical and medieval India.