On October 1, 1880, on the outskirts of Mento Park, USA, Thomas Alva Edison opens a light bulb factory.

On this day (October 1), 1880, on the outskirts of Mento Park, USA, Thomas Alva Edison opens a light bulb factory.
In January 1880, Edison obtained a patent for this improvement, however, the experiments continued in the Menlo Park laboratory until it was discovered that the use of a charred bamboo filament could make a light bulb shine for a thousand two hundred hours.
On December 31, 1879, Edison first demonstrated his electric light bulb in Menlo Park and during this event he commented that he would make electricity so cheap that only the rich would light candles.
In 1880 the Edison Illuminating Company was founded, with the goal of commercializing street lighting from electricity and competing with oil and gas lighting utilities.
At Edison's demonstration were Henry Villard, president of the Oregon Railroad and Navigation Company; Extremely impressed with the experiment, he asked Edison to install electric light bulbs on the company's newest ship, the Columbia. After hesitating, Edison accepted the proposal, making the installation at the Columbia the first paid lighting job, and lighting was commercialized for the first time.
In 1882, an Edison assistant, Francis Hehl, supervised the installation of electric lighting in the Mahen Theater, in what is now the Czech Republic, being the first public building to have this type of lighting.
The United States Patent Office issued a ruling on October 8, 1883, that Edison's patents were based on the prior art of William Sawyer and were invalid. The litigation continued for several years. Finally, on October 6, 1889, a judge ruled that Edison's claim of "a carbon filament of high resistance" improving electric light was valid.
As a matter of curiosity, the historian Thomas Hughes has attributed Edison's success to his development of a complete and integrated system of electric lighting:

"The lamp was a small component in their electrical lighting system, and was no more critical to its effective operation than the generator Edison Jumbo , the main feeder and the Edison feeder and parallel distribution system. Other inventors with generators and incandescent lamps, and with comparable ingenuity and excellence , have been long forgotten because their creators did not preside over their introduction into a system of lighting ."

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- what are you doing here?
- bulbs
- bulbs?
- that's what I said
- hahahahahaha...
- do you find it funny?
- a lot... hahahahaha...
- why?
- bulbs!
- small bombs to kill bugs, right?
- what?
- how funny! Tiny bombs!
- it's not that
- hahahahahaha..
- listen...
- tiny light bulbs! what fun!....

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