The first patent for the modern bra was issued in 1914. It was created by Mary Phelps Jacob when she was just 19 years old.
It consisted of two handkerchiefs sewn together with straps that tied around your neck. The look was similar to a halter top bikini. It wasn't as conforming, but it was much more comfortable than the metal corsets women had previously worn.
Jacobs, who later changed her name to Carasse Crosby, sold the patent to Warner Brother's Corset Company in Bridgeport, CT for $21,000.
Sources: TIME Magazine
Below is a timeline for the complete history of the bra. Click HERE for a larger view: