The Light Bulb

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The discovery of electricity was amazing, but the introduction of the light bulb truly changed the world forever. Though Thomas Edison is credited with inventing the light bulb, many people actually contributed to this invention. It brought a stable form of artificial light to the world, and though its form is changing, it is still in use all over the world today. The symbol of the light bulb is synonymous with having a great idea.

The Refrigerator

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Before refrigeration became a possibility, it was difficult for people to store food for long periods of time, especially in hot climates. Refrigeration technology came around in the early 20th century, but it wasn't until around 1950 that they started to become standard in American households. Today most people couldn't imagine life without this helpful method of food preservation. It has also made it easier to import and export food from all over the world.

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The Sewing Machine

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Prior to the sewing machine's invention, all sewing had to be done by hand and took hours and hours longer than it does today. When the sewing machine became commercialized in the middle of the 19th century, it revolutionized entire economies and changed the way people made and repaired clothing forever. Like many other inventions, its ability to save its users time and energy made it indispensable and has rendered sewing by hand almost obsolete.

The Printing Press

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The printing press is perhaps one of the most important inventions that the world has ever seen. Prior to its creation, it was nearly impossible for the general public to get their hands on books, let alone know how to read them. The introduction of the printing press changed all that. It prefaced political and social revolutions such as the Reformation and the Renaissance and made it possible for print to be more widely distributed.