In 1919, French industrialist André Citroën converted his Paris munitions factory at the Quai de Javel—which had produced over 50,000 artillery shells daily during World War I—into a cutting-edge automotive plant. Inspired by Henry Ford's Highland Park assembly line, André became the first European to implement modern automotive mass production, launching the **Citroën Type A** in June 1919 as Europe's first mass-produced car. André was a marketing and engineering genius: he illuminated the Eiffel Tower with 250,000 lightbulbs spelling 'CITROËN' for a decade, funded pioneering trans-Saharan motorized expeditions, and introduced the double-chevron logo (inspired by his patented herringbone helical gears). In 1934, Citroën launched the revolutionary **Traction Avant**—the world's first mass-produced unibody front-wheel-drive car—cementing Citroën's place as the world's most daring automotive innovator.