Kodachrome was the first colour film that used subtractive colour method that could be mass produced. by Eastman Kodak in 1935 on this day .It was used for moving film and still images. It was manufactured for 74 yrs and one of the oldest running brands of colour film.
It was sold for 35mm Movies Through Technicolor Corp
Also, for motion picture cameras including 8mm, Super 8, 16mm
Still photography ; 35mm, 120,110,126,828 and large format
4×5, 5×7, 8×10, 11×14, 2.25×3.25, 3.25×4.25, 6.5 cm x 9cm, 9cm x 12cm
So most of peoples history would have seen something produced on Kodachrome, publications, national and international movies, personal holiday family snaps and home movies.
2002 some started to be discontinued the last in 2009. This was with the birth of digitised photography.