This map shows villages in the province of Musashi that later grew together to form the city of Edo (present-day Tokyo). Edo Castle, built in 1457, is placed in the center of the map, which includes shrines, village names, and a tameike (reservoir) constructed in 1606, which dried up around 1877. A brief historical background on the establishment of the city is provided in red letters on the lower left. The title of the map implies that it was modeled on a map from the Chōroku period (1457–59), made after the castle was built and before the town was fully established. Similar maps were reprinted in various iterations from the 18th century. The original map has not been found, however, and it is unclear whether any original actually was drawn during the Chōroku period. This map may have been a retrospective view of the district, made later as an imagined portrayal of the birth of the capital city or as a study of 15th-century history. The map is oriented with north toward the upper right.