What's an example of Edison or Tesla doing multiple "revolutionary things no one's ever done all at once"? I'm genuinely interested, but details matter a lot. F

What's an example of Edison or Tesla doing multiple "revolutionary things no one's ever done all at once"? I'm genuinely interested, but details matter a lot. For example, the Edison company's contribution to electric light was mainly extending the life and reducing the amperage of light bulbs. Other people had already demonstrated the potential of electric light.