In the late 1800’s, a modified orange tree from Brazil that was able to produce fruit without seeds was brought to Riverside, California. Within 12 years, the navel orange grew to be the main crop in Riverside and neighboring cities.
To further the economy, local fruit growers decided to pick their fruit together and market it under one brand. The process included grading the oranges to make sure the quality was consistent. The plan grew into a major fruit exchange in the southern part of the state, and is now known as Sunkist.
By 1895, Riverside was California’s richest city because of the invention of railroad cars with refrigeration, and new and refined irrigation opportunities.