He lived for 29,771 days. In this time, he created nearly 3000 paintings which feature only the dates on which they were made: meticulous white lettering inscribed on backgrounds of red, blue, or gray. He produced these paintings in more than 100 cities worldwide, using the language of each locale. If he couldn’t finish a day’s painting by midnight, he would destroy it. He sent more than 1500 postcards and over 900 telegrams to acquaintances from places around the world.