Curated category
American companies established in 1920
- Occidental PetroleumLos Angeles, 1920 marked the birth of Occidental Petroleum. Armand Hammer took control in 1957 and steered the company through a decade of rapid growth.
- Scholastic CorporationMaurice R. Robinson stood near Pittsburgh, Pennsylvania in 1920 to launch a small publishing venture. The first publication was The Western Pennsylvania…