The history of Man can be seen as a succession of conquests: we never think about the history of colors and yet it has changed our lives. "The conquest of colours" is a journey to discover how our world has been enriched with millions of shades over the centuries, thanks to the appearance of increasingly bright hues and colours. We will start from the Paleolithic, when humanity could essentially only have three colours: black, ocher and white. And we will continue to discover how the deep Egyptian blue, the first synthetic color in history, and the elegant purple of the Phoenicians and Romans were then added. We will see how the great glass masters learned to flood the cathedrals with colored lights, and how the greatest artists of the past obtained their colors using precious stones, such as lapis lazuli from which the blue used for example by Michelangelo in the Sistine Chapel was obtained.