Tokyo Metro Ginza Line Opens

On August 10, 1927, Tokyo's Ginza Line inaugurated subway service, Asia's first underground railway, spanning 2.2 km with electric multiple units. Built to alleviate street congestion in the capital, it featured innovative cut-and-cover construction amid earthquake recovery efforts post-1923. Key figures included engineers from the Tokyo Underground Railway Company. The line carried over 100,000 passengers daily initially, setting standards for urban rapid transit with its 1,500V DC electrification. It expanded Tokyo's metro system, influencing global subway designs and remaining a vital artery today with modern rolling stock.