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History Of Refrigerators
People use to build ice houses deep in the ground or near water for refrigeration 3000 years ago. In 1900's iceboxes were made. Sawdust seaweed was used as insulators. In 1920's, electric refrigeration appeared and was trending those days. In 1950's safe food storage was started with bottom cooling and frost free units. Nowadays, stylish, energy-efficient, consumer-friendly refrigerators are available. Get more information about refrigerators.