Otto Diesel was a German engineer and inventor best known for developing the diesel engine, which revolutionized transportation and industry. Born on March 23, 1858, in Paris, France, he studied mechanical engineering and later focused on improving internal combustion engines. His innovative design used compression ignition, making it more efficient than earlier engines. In 1892, Diesel patented his engine, which ran on a variety of fuels, including vegetable oil. This versatility contributed to its widespread adoption in various applications, from ships to trucks. Diesel's work laid the foundation for modern diesel technology, impacting global transportation and energy sectors.