Paris Métro First Line Opens

On June 30, 1900, the Paris Métro's inaugural Line 1 opened between Porte de Vincennes and Porte Maillot, marking a new era in rapid urban transit. Designed by engineer Fulgence Bienvenüe, the system featured innovative deep-level tunnels and distinctive Art Nouveau entrances by Hector Guimard. Built to alleviate congestion during the Exposition Universelle, it quickly became a model for subway systems worldwide with its efficient electric multiple-unit trains. The opening connected key districts and symbolized France's industrial progress. Its lasting impact includes shaping modern Parisian life and inspiring global metro designs, with Line 1 remaining one of the busiest routes today.