Tenno Sho
Satsuki Sho, Tokyo Yushun, Kikuka Sho, Tenno Sho (Autumn), Arima Kinen was 5 of the 8 major races in Japan (the other 3 are Oka Sho, Yushun Himba, and Teio Sho (Spring)), before the introduction of Grade in 1984 which categorized all as GI in 1984. Also, before 1981, a horse can only win Tenno Sho once in their career.