History's Viral Moments: What Do You Know, Meme Lord?

Which event is often considered the start of World War I? What accidental art form emerged during the 1960s-1970s tied to cultural revolutions? Which famous historical structure was completed but never intended to lean? What major event was dubbed the 'Shot Heard 'Round the World' due to its significant historical impact? Which famous historical figure is falsely credited with saying "Let them eat cake?

Before becoming a famous emperor, Napoleon was once attacked by... what? The British Empire was so vast that its capital, London, was once the capital of territories on EVERY continent except: