When did color photos begin to appear in the world? Why didn't it catch on at that time?

1861may 17, in a lecture given by the British science society in London, Maxwell produced the earliest color image in the world by mixing the three primary colors. He was recognized as the founder of the principle of color photography, and the experiment of color photography began.

The first color photo (1877)

French l? d？ Duguo? In 1869, Hao Lun first expounded the color forming principle of subtractive method. 1877 successfully filmed and produced the world's first color photo "Scenery of Liancheng Town in Angu".

Color photography appeared in World War II.