For centuries, painters and textile dyers sought all sorts of ways to create a brilliant red. It’s a really hard color to make, as anyone can tell you who has tried to dye Easter eggs the natural way. (OK, I’ll… Read More
In 1497, Leonardo finished his fresco of The Last Supper on a wall in the Convent of Santa Maria delle Grazie. Around 1650, the monks decided they needed a new doorway into the refectory, so they carved one right into the fresco.