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This time line is based on the idea that light bulb improvement was not done by TE or anybody else at that time.
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If we had not invented the light bulb we would have used kerosene lamps for another 20 years
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If ligthbulb had not been invented by TE, some scientist would have developed fluorescent light instead
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If ligthbulb had not been invented by TE, some scientist would have invented eventualy
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LED technology would have been developed 30 years faster if incandescent light would not had been invented by TE
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If kerosene lamps had been used 20 more years, global warming effects would have happened 40 years earlier.
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if light bulb had been invented 25 years later, many discoveries had been delayed
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We would be living in a diferent iluminated world, if all this things had happened