Hedwig Eva Maria Kiesler was born to a Jewish family in Vienna. Her father was a successful bank director, and from an early age she showed interest in both acting and how things worked mechanically.

Young Hedwig began acting classes and showed remarkable talent. She was fascinated by both the arts and sciences, often taking apart and reassembling household items to understand their mechanisms.

She made her film debut in a small role in a German production. Her striking beauty and talent attracted attention from European filmmakers, launching her acting career.

She gained international notoriety for her role in the Czech film Ecstasy, which featured groundbreaking and controversial scenes that shocked European audiences.

She married Friedrich Mandl, a wealthy Austrian arms manufacturer. During dinner parties, she overheard discussions about weapons technology that would later influence her inventive work.

Fleeing her controlling husband, she disguised herself as a maid and escaped to London. She soon met MGM studio head Louis B. Mayer, who offered her a Hollywood contract.

She arrived in America with a new name and MGM contract. Her debut film Algiers made her an instant sensation, and she was marketed as the most beautiful woman in the world.

Lamarr established herself as one of Hollywood's leading actresses, appearing in numerous successful films. Despite her glamorous image, she spent evenings working on inventions at home.

Working with composer George Antheil, Lamarr developed a secret communication system using frequency-hopping to prevent enemy jamming of torpedo guidance signals during WWII.

Patent No. 2,292,387 was granted for her frequency-hopping spread spectrum invention. The Navy initially rejected it, but the technology would later become foundational for WiFi, Bluetooth, and GPS.

Her role as Delilah in Cecil B. DeMille's epic became one of her most iconic performances. The film was a massive box office success and showcased her dramatic talents.

After years in America, Lamarr became a naturalized US citizen. She had married and divorced several times, balancing her personal life with a demanding career.

Lamarr made her last film appearance, effectively retiring from acting. She had appeared in over thirty films during her Hollywood career spanning three decades.

The Electronic Frontier Foundation honored Lamarr and Antheil with the Pioneer Award for their frequency-hopping invention. She reportedly said it was about time she was recognized.

Lamarr received recognition from the technology community for her contribution to wireless communication. Her wartime invention was finally acknowledged as pioneering technology.

Hedy Lamarr died at age 85. She left a dual legacy as both a Hollywood icon and an inventor whose frequency-hopping technology became the foundation of modern wireless communications.