Tokaido Shinkansen Test Runs Begin

June 21, 1964, marked the start of intensive test runs for Japan's Tokaido Shinkansen between Tokyo and Osaka. Designed under the leadership of engineer Hideo Shima, these 0 Series bullet trains reached speeds over 200 km/h, overcoming challenges like earthquake resistance and aerodynamic stability. The line opened just weeks later for the Tokyo Olympics, revolutionizing intercity travel. It symbolized Japan's post-war technological resurgence and inspired high-speed rail networks globally, proving that dedicated passenger lines could achieve unprecedented efficiency and safety.