However, after the standard dialect or common language was developed based on a Tokyo dialect in the Meiji period, traditional dialects have been on a declining trend nationwide including Tokyo due to influence of school education, mass communication, etc.
しかし明治時代に東京方言を基盤に標準語・共通語が整備されて以降、学校教育やマスコミ等の影響で東京をも含め全国で伝統的な方言は衰退していく傾向にある。