Who was Armand hammer?

Armand Hammer was an American businessman and philanthropist, best known for his role as the CEO of Occidental Petroleum, a major oil company. Born in 1898, he was influential in international business and had strong ties to the Soviet Union, which he leveraged to expand his company's operations. Hammer was also known for his extensive art collection and philanthropic efforts, particularly in the fields of medicine and education. He passed away in 1990, leaving behind a complex legacy of business acumen and political connections.