According to the house of Kongzi in "Shiki" (Records of the Grand Historian," Koshi had 3000 disciples, and the 'ones who were familiar with the Six Arts (rites, music, archery, charioteering, literature and mathematics)' were called Shichijisshi (approximately seventy disciples of Koshi with outstanding talent).
『史記』孔子世家によると、孔子の弟子は3000人おり、特に「身の六芸に通じる者」として七十子がいたとされる。