What product does vanderbilt put on his trains, and who is it that he asks to supply his trains?

Vanderbilt helped popularize steel when he replaced the iron tracks of the railway with steel; this was safer and more economical because it could bear a heavier load. The supplier of this steel was England where he imported it from. Vanderbilt used his train to supply the still across the country.

It taught people how to live a good life, but not what to believe.