In 1903, Edouard Benedictus, a French chemist accidently dropped a flask on the ground during an experiment. Inside the flask contained a liquid nitrate solution which coated the glass in a plastic layer. To his surprise, when the flask hit the ground, though it did break, the glass did not shatter. That year is widely recognized as the launch for the research and development of what is known today as bulletproof glass.
During World war I, the evolution of bulletproof glass led to its popularity in commercial and military use. The advancement of thicker and more durable versions were fitted in gas masks, airplanes, and transport vehicles to shield soldiers during battle. By 1930, due to the high cost of bulletproof glass in vehicles, its use was limited to mainly criminals and the upper class.
In 1942, United States President Franklin D. Roosevelt had bulletproof glass installed in the Oval Office to provide added protection for himself and his aides during the war effort. One of the most famous uses of bulletproof glass began in 1981 when the vehicle of Pope John Paul II was protected with this ballistic armor material.
Today, armored glass manufacturers such as Secur*Glass develop automotive and architectural ballistic glass for a range of vehicle, military, commercial, and residential applications. Thanks to the technological advancements over the years, you can find ballistic glass all around, not only in vehicles but everyday places such as banks, police stations, and schools.