The first microwave ovens were created in which decade: 1970's, 1960's, 1950's, or 1940's?

While the technology was discovered by accident in the mid-1940s, the first microwave ovens meant for consumers were introduced in the following decade. The origin story is a classic piece of science trivia: in 1945, a Raytheon engineer named Percy Spencer was working with active radar equipment when he noticed a chocolate bar in his pocket had melted. Realizing the potential, his company patented the process and built the very first commercial microwave oven in 1947.

However, this initial model, called the "Radarange," was a commercial and industrial behemoth. It stood nearly six feet tall, weighed over 750 pounds, was water-cooled, and cost the equivalent of over $50,000 today. It was completely impractical for household use and was sold only to places like restaurants, military ships, and hospitals.

The transition to a home appliance occurred when the Tappan company licensed the technology and introduced the first domestic microwave oven in 1955. Although it was still large and expensive, this was the first model designed and marketed specifically for the home kitchen. This places the creation of the first consumer microwave ovens squarely in the 1950s, though it would take until the late 1960s for smaller, more affordable countertop models to make them a common household sight.