The first real innovation was about 12,000 years ago when humans began consciously engaging in agriculture and no longer just gathered what is out there. The most advanced hunting tool, bow & arrow was advanced further but farming was the breakthrough in feeding all humans on earth back then. A significant elevation through a major shift in conducting life.
Leveraging an existing data communication protocol (TCP/IP) and using natural language to make information visible through such a protocol (HTML) created the Internet. This innovation significantly elevated the way we communicate and learn.
Rethinking mobility and the urge of solving the problem of non-renewable energy led to electricity-powered machines. It elevated the way we move long distances not only on train tracks but also on roads. Electric energy is infinite in our universe. Harnessing this power is a significant elevation in the way we roam the earth and possibly more.