In which decade did television become widely available around the world?
1950s
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Where were the wheels invented?
In Mesopotamia
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Developed in the 1990s, this technology enables short-range wireless communication between electronic devices.
Bluetooth
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It was invented in 1817 by Karl von Drais, with pedals added in the 1860s. It also has wheels, a seat and handlebars and it is made of light materials.