Chromolithography

Do you know how you can make a drawing in your coloring book using lots of different colors? Chromolithography is kind of like that, but it's a way of printing pictures with lots of different colors on paper.

First, someone makes a picture using a bunch of different colors. But instead of just drawing with them, they use special materials to make different layers of colors on a flat surface.

Then they take a big piece of paper and press it onto the colorful surface really, really hard. The colors on the surface of the picture transfer onto the paper, creating a print that is just as colorful as the original picture!

This process is called chromolithography, and it was invented a long time ago before computers and color printers were around. It made it possible for people to print lots of pictures in lots of different colors, which was a really big deal back then.