flying + super strength
Ancient Egypt or Mesoptamia most likely. But they didn't use the term "superpower" then.
humanity and its choices
Girls are born with the superpower of manipulation. Not all, but most are. This is not a bad thing and you should learn to master it.
The power to control probability. Trust me it is a lot more powerful than it sounds. An ability to disable people's senses. Most deadliest superpower.
No, Vietnam is not a superpower.
A superpower in recovery maybe.
The US grew greatly in global influence in the 19th century and became a superpower in the 20th century. The US is still a superpower in the 21st century.
It pays to have powerful friends. because if you don't have anything to do with them or are not friendly nations most likely you will have to pay
Superpower is a fighting type move.
Flareon learns Superpower by Move Tutor.
The Move Tutor can teach Luxray Superpower.
The USA and Russia were the two main superpowers (although Russia did not have much of a Navy at the end of the war, it was mainly a air and land based superpower). England was still a superpower, but, it was in decline and many of it's colonies would soon get their freedom. France, mostly conquered by Germany, was not a superpower, although it continued to act as though it were, and it lost most of it's colonies after the war as well.