John D. Rockefeller - The richest man in USA

Un breve riferimento su John D. Rockefeller

Have you ever wondered how much money the richest man in USA had? How he became successful in all his businesses? And what words and phrases are the part of this great man we came to know?

You can find answers to the questions below by opening this app.

There are also videos that can serve as an additional resource for information.

Updates and more, coming soon.