The first section of Line 2, between Sakae-machi (current Sakae) and Shiyakusho, opened in 1965. The line was named Meijō Line in 1969, and the extension was completed in 1971.
The initial part of Line 2, from Sakae-machi (current Sakae) to Shiyakusho, was inaugurated in 1965. The line was named Meijō Line in 1969, and the extension was finished in 1971.