A light bulb built in 2012 will last for 1000 hours. A light bulb built in the 1890s has been on in a Livermore California Fire Station for over 970,000 hours (and is still going).
Here is a bit of its story as told by Dick Jones retired engineer and member of the Livermore Centennial Light Bulb Committee.
The Centennial Livermore Light Bulb was installed in 1901. How long did it take before someone realized it was something significant? ………….. read the whole story here.