The ward was founded on March 15 , 1947 , through the administrative amalgamation of the former Ebara Ward with the former Shinagawa Ward . Both Ebara Ward and Shinagawa Ward had been created in 1932 , with the outward expansion of the municipal boundaries of the Tokyo City following the 1923 Great Kantō earthquake
1923 Great Kantō earthquake
1923 Great Kantō earthquake
Shinagawa