> The TGV was the world's fourth commercial and third standard gauge high-speed train service,[15] after Japan's Shinkansen, which connected Tokyo and Osaka from 1 October 1964, the Russian ER200 around 1974 (full service in 1984), and Britain's InterCity 125 on main lines such as the East Coast Main Line, which entered service in 1976.
> The TGV was the world's fourth commercial and third standard gauge high-speed train service,[15] after Japan's Shinkansen, which connected Tokyo and Osaka from 1 October 1964, the Russian ER200 around 1974 (full service in 1984), and Britain's InterCity 125 on main lines such as the East Coast Main Line, which entered service in 1976.
https://en.wikipedia.org/wiki/TGV#Milestones