The first coloring results go back to the late 19th century. By 1916, Issai Schur had proved that however you color the positive integers (also known as natural numbers), there will always be a pair ...

Welcome to Color Math, a monthly column by Tibi founder and creative director Amy Smilovic. Author of the Creative Pragmatist—a practical guide to expressing your personal style—each month ...

CHC says George Floyd death shows ‘tiny fraction’ of what people of color confront in their daily lives by Marty Johnson - 05/30/20 6:11 PM ET ...