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==Recent Developments==
The basic concept of popcorn has not shifted much. However, variations of the basic popcorn have been around for sometime. Caramel popcorn has been around since the Chicago World's Fair in 1893. In some countries, sweet popcorn became increasingly popular, rather than the salty brand, such as in parts of Europe.
Many changes to popcorn have focused on technology changes to making popcorn. For instance, in 1978 the Presto company introduced what would become a popular air popper. This was introduced as a healthier way to make popcorn as it did not require oil to make. Electrically-heated circular popcorn makers are also popular home products. Microwave popcorn has been around since the 1940s, but only since the 1970s it was more widely commercialized. The popularity of microwaved popcorn was reduced due to the fact they often use a lot of fat, sometimes taking up to 60% of the calories in this type of popcorn. Various artificial flavoring and coating chemicals used also make it potentially damaging to the environment and could have long-term health implications.
==Summary==
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