I guess i should thank every american i meet for the lightbulb.
There were over 20 inventors of incandescent lamps prior to Edison. It all started with Humphry Davy (Royal Institution of Great Britain) who created the first incandescent light over 70 years before Edison. The light was a bit on a dim sid but the firt steps were made.
In 1874 Henry Woodward and Mathew Evans (Canada) patented an improved electric light bulbs and patented the invention (US Patent 181613). The patent was bought by Thomas Edison who obtained exclusive rights to Canadians' patent. Edision made further improvements to the bulb's design and to commercial production.
Edison's contribution: he made an existing product better. Much like the white borsch I cook is better than my mom's. Pitty I can't patent a soup :)
it wasn't for the american guy I used to know I wouldn't be using the internet
That started with a Spanish guy in 1775 Francisco de Salva (electrostatic telegraph). hThen there was a bunch of Germans on the communication side and a Brit who is considered the forst computer programmer (Ada Byron). Americans came later :)
if it wasn't for that american girl i used to work with, why, i'd be speaking german
Now, that's kinky :)