WASHINGTON – Those wondrously intricate tile mosaics that adorn medieval Islamic architecture may cloak a mastery of geometry not matched in the West for hundreds of years. Historians have long ...

Medieval Islamic designers used elaborate geometrical tiling patterns at least 500 years before Western mathematicians developed the concept. The geometric design, called “girih”, was widely used to ...

People have been surfacing floors and walls in tile for hundreds of years; it’s one of our oldest materials. But the industry keeps reinventing the product. Digital printing and fabricating advances ...