when were freezers combined with refrigerators and sold on the market
Refrigerator The first cooling systems for food involved using ice. Artificial refrigeration began in the mid-1750s, and developed in the early 1800s. In 1834, the first working vapor-compression refrigeration system was built. The first commercial ice-making machine was invented in 1854. In 1913, refrigerators for home use were invented. In 1923 Frigidaire introduced the first self-contained unit. The introduction of Freon in the 1920s expanded the refrigerator market during the 1930s. Home freezers as separate compartments (larger than necessary just for ice cubes) were introduced in 1940. Frozen foods, previously a luxury item, became commonplace.
Frosty (frozen dairy dessert) The Frosty was invented by Borden's dairyman John Bowers at the request of Dave Thomas, founder of Wendy's. When the first Wendy's opened in 1969, chocolate, which is actually a combination of chocolate and vanilla (swirl), was the only flavor offered. Dave Thomas, founder of Wendy's, thought that 100 percent chocolate would be too overpowering a flavor when paired with a Wendy's burger and fries meal. A second flavor, vanilla, was introduced in 2006.[1]