Who perfected the radio transmission and is credited with its invention?

Guglielmo Marconi

Who portrayed Mia Wallace in the 1994 film "Pulp Fiction"? Name the evil wizard who serves as the main villain in the Harry Potter series Kigali is the capital of which East African nation? Who released 'In the Wee Small Hours' in 1955, often considered one of the first concept albums? Who wrote "Democracy in America", observing early American society?