Several key contributors and milestones include:
* Early steam-powered vehicles: Nicolas-Joseph Cugnot created a self-propelled steam tricycle in the 1770s, considered by some as a precursor to the automobile. However, these early steam vehicles were cumbersome and impractical.
* Internal combustion engines: The development of reliable internal combustion engines (ICE) was crucial. Several inventors contributed to this, including Étienne Lenoir and Nikolaus Otto. Otto's four-stroke engine proved much more efficient than earlier designs.
* Benz Patent-Motorwagen (1886): Karl Benz is widely credited with creating the first practical automobile. His three-wheeled vehicle used a gasoline-powered internal combustion engine and was considered the first true automobile to be mass-produced.
* Ford Model T (1908): Henry Ford's Model T revolutionized the automobile industry through mass production techniques like the assembly line, making cars affordable for the average person. This is arguably a more significant event in the automobile's *history* than its initial invention.
In short, the automobile evolved over time through the work of numerous inventors and engineers who built upon each other's advancements. There's no single "discovery" but rather a continuous process of invention and refinement.