Paris Métro Line 2 extension opens

June 29, 1900 marked the opening of the eastern extension of Paris Métro Line 2 to Place de la Nation. This addition to the rapidly expanding underground network alleviated street congestion in the growing French capital and demonstrated advanced electric traction technology. Key figures included engineer Fulgence Bienvenüe. The line's construction navigated dense urban geology and integrated with existing rail infrastructure. It played a vital role in modernizing Parisian mobility ahead of the 1900 Exposition Universelle and set standards for subway systems globally, influencing designs in cities like New York and London.