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The first appearance of the icebox (wood) was in 1925. It was the first known version of the refrigerator.
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The first appearance of the metal icebox was in 1935. This version of the refrigerator could hold more items, get colder, and keep items colder for longer.
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The Side by Side was a more up-to-date version of refrigerators we have now. One door opened into a freezer and the other opened into the refrigerator.
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A refrigerator was created where there was one door on top and one door on bottom. However, these were quickly banned for harming the environment.
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These refrigerators were more updated and fashionable, but they were banned as well for using a chemical that depleted the Ozone Layer.
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Modern refrigerators were created with features such as touch screens and in-door cameras. These refrigerators make tasks much easier (e.g. Shopping).
