EDISON HAS HIS LIGHT-BULB MOMENT
After months of failures and disappointments, on 21 October 1879, inventor Tomas Edison finally achieved a successful test of his electric light bulb. His wasn’t the first electric light but, by using a carbon filament, his lasted the longest – 13 hours – and required less power, making it more practical. Edison filed a patent for the first commercially practical and incandescent light, with gas lighting slowly becoming redundant. Finally the world was lifted out of the darkness and into the modern era.
ALAMY X1, AKG IMAGES X1, GETTY X6