Some items invented in Dallas (from The Dallas Morning News: 5/6/99)

* The nation's first convenience stores, the vast 7-Eleven chain, now in 18 countries, started here in 1922.
* Henry Garrett invented the first car radio in the early 1920s and possibly the first automatic electric traffic light.
* In 1931, Highland Park Village opened, the first shopping center with stores surrounding a central parking area.
* In 1938, Hillcrest State Bank opened the first drive-up bank window.
* The first integrated circuit, which became the microchip, was invented by Jack Kilby in 1958 at Texas Instruments.
* The idea for the ubiquitous ATM machine came from Don Wetzel in the 1960s.
* The frozen margarita was invented by Dallas restauranteur Mariano Martinez in 1971.
* Inspired by his daughter's Super Ball, Dallas' Lamar Hunt, owner of the Kansas City Chiefs, coined "Super Bowl."
* Barney, the lovable purple dinosaur of Public Broadcasting, comes from Dallas area, as does the smart, history-loving dog, Wishbone.