Only a handful of tornadoes each year cause loss of life and/or significant property damage- and such storms are certainly a significant part of American history. But a particularly costly storm in 1948 not only made history, it changed our very understanding of tornadoes themselves, resulting in the first tornado forecast.
On September 22, 1953 a new kind of construction was fully opened for the first time in Los Angeles. The Stack is an LA icon that changed the way the world builds its highways.