![International Electrotechnical Exhibition](https://cdn.calendarz.com/uploads/events/may/16/46138/international-electrotechnical-exhibition_compressed.jpg)
1891May, 16
The International Electrotechnical Exhibition opens in Frankfurt, Germany, and will feature the world's first long distance transmission of high-power, three-phase electric current (the most common form today).
The 1891 International Electrotechnical Exhibition was held between 16 May and 19 October on the disused site of the three former Westbahnhöfe (Western Railway Stations) in Frankfurt am Main, Germany. The exhibition featured the first long-distance transmission of high-power, three-phase electric current, which was generated 175 km away at Lauffen am Neckar. As a result of this successful field trial, three-phase current became established for electrical transmission networks throughout the world.
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Events on 1891
- 10Mar
Strowger switch
Almon Strowger, an undertaker in Topeka, Kansas, patents the Strowger switch, a device which led to the automation of telephone circuit switching. - 15May
Rerum novarum
Pope Leo XIII defends workers' rights and property rights in the encyclical Rerum novarum, the beginning of modern Catholic social teaching. - 20May
Kinetoscope
History of cinema: The first public display of Thomas Edison's prototype kinetoscope.