常陸梅era during early 1900s dominated by the grand champions Hitachiyama and Umegatani II
Noun
常陸梅時代era during early 1900s dominated by the grand champions Hitachiyama and Umegatani II
Noun
常陸風土記Hitachi Fudoki (description of the culture, climate, etc. of Hitachi province; ca. 720 CE)
Noun