People who had nothing and built something anyway.

What kind of inventor dies with $275.05, an unmarked grave, and no verified photograph — but a machine the world still uses 150 years later?

He gave away so much gold in Cairo that the Egyptian economy took twelve years to recover — and somewhere on the way home, he ran out of money entirely.

The four equations that power every phone on Earth were written by a man who lived on granite blocks and signed his letters W.O.R.M.