Andrew Ross Sorkin

National City later becomes Citigroup.

That's the bank we know today.

But Charlie Mitchell ran what was the largest bank in the country, was soon to be the largest bank in the world.

He was probably the equivalent of a Jamie Dimon-like character in terms of just sort of pure fame back then.

It's also worth recognizing in the 1920s, it's really the first time that business leaders became celebrities.

I mean, they were on the front pages of newspapers.

on the covers of magazines for the first time.

But it really was Carter Glass who was ringing the alarm bell and ringing it loudly and early to say, all of these folks on Wall Street are creating this speculative fever, which in his mind was going to ultimately falter and therefore upend the U.S.

economy.

Oh, goodness.

Well, Charlie Mitchell lived up on Fifth Avenue between 74th and 75th Street.

Today, his home is the French embassy.

But that's where he lived.

I mean, it's an extraordinary property if you've ever even walked past it.

here in New York City.

But so many of these business leaders lived like true kings.

They were living in the mansions, what are now many of the embassies and other big, large buildings that

exist across Fifth Avenue in the Upper East Side.

That was born in the 1920s.

In fact, so much of New York City was born in the 1920s.