Leaded windows were beautiful and much sought after in their time. The artists who created these pieces were taking unknown chances with their health. The lead they used to hold the colored glass pieces into place was slowly poisoning them. In the modern world, lead has become known as a health hazard in many industries. Eliminating its use from all industries has been a worldwide cause. Because of this, new methods had to be created to keep stained glass in place. Today’s artists use either zinc or tin to keep their glass steady in its original design. Neither of these elements has any known health risks for those using it.