The Economic Times

In 1913, a Corning physicist baked a cake in a cut-down railway-lantern glass jar; the experiment helped lead to heat-resistant cookware

In the early 1900s, the invention of heat-resistant glass marked a significant advancement, initially intended to safeguard railway lanterns from damage due to thermal shock. This remarkable creation serendipitously led to the formulation of PYREX cookware after a 1913 baking trial. Scientists at Corning fine-tuned this glass and launched a pie plate in 1915, which quickly became a staple in American kitchens.