By the 1970s, fully one-quarter of Japan's population lived in or around Tokyo.<ref>Anne Walthall, Introduction, ''The Human Tradition in Modern Japan'', Rowman & Littlefield Publishers (2002), xvii.</ref> Today, that proportion is even higher. | By the 1970s, fully one-quarter of Japan's population lived in or around Tokyo.<ref>Anne Walthall, Introduction, ''The Human Tradition in Modern Japan'', Rowman & Littlefield Publishers (2002), xvii.</ref> Today, that proportion is even higher. |