George Eastman established the Eastman Kodak brand back in 1888 when photography was still optical mumbo-jumbo and camera-wielding photographers were a rare sight.
However, the turn of the century saw a spur in the interest to own a camera, partly credited due to Kodak’s photographic camera namely the Kodak Pocket camera and then the fabled Brownie. They were followed by a number of other models. In order to have a stranglehold in the photography business, they also produced at first a paper-based film which was then developed into a transparent cellulose-based film for better performance.
Kodak also had significant contributions to the world of digital photography. It was a researcher at Kodak named Bryce Bayer who invented the Bayer Pattern color filter array, something that almost all digital cameras use these days.
Before that, a researcher at Kodak named Steve Sasson developed the first self-contained digital camera that shot 0.01-megapixel images and recorded them onto a cassette tape.