- Japan originally developed bullet trains, known as Shinkansen trains, which can reach speeds up to 320km/hr. The main Shinkansen lines connect Tokyo, Osaka, and other major cities. - The first high-speed rail line between Tokyo and Osaka opened in 1964 for the Tokyo Olympics, with trains reaching speeds up to 185mph. - In 2015, India and Japan signed an agreement for Japan to help build India's first bullet train network between Mumbai and Ahmedabad, aiming to revolutionize Indian railways.