Wow... 131 years of incandescent bulbs. Now that's what I call product longevity. 2010's not all that far off, frighteningly enough...

"Driven by the rising availability of new high-brightness LED (HB-LED) and UHB (ultra-high brightness) products, LEDs are beginning to find limited use in general-illumination applications now dominated by incandescent and fluorescent light bulbs. iSuppli defines general illumination as the interior and exterior lighting of homes, enterprises and public venues."