LITTLE KNOWN FACTS ABOUT WHO IS THE RICHEST PERSON IN HISTORY.

1% of US GDP at some time, meaning that in these days’s terms Carnegie can be worth in between $370bn to $400bn (£277bn to £300bn). That figure puts him ahead of John D Rockefeller, whose Conventional Oil corporation controlled ninety% of US oil generation by 1880 and gives Carnegie a fortune really worth much more than twice that of Jeff Bezos