How did john d rockefeller impact history

In 1870, he established standard oil, which by the early 1880s controlled some 90 percent U.S. refineries and pipelines. Critics accused Rockefeller of engaging in unethical practices , such as predatory pricing and colluding with railroads to eliminate his competitors , in order
To gain a monopoly in the industry.

The muslims ruler the mandated and cultural toleration was osman