Ichirizuka

thumb|right|300px|Ichirizuka at Tarui-juku, one of the 69 Stations of the [[Nakasendō; only one of the two mounds survives, to a height of ; designated a national Historic Site]] thumb|right|300px|Ichirizuka at Shōno-juku, one of the 53 Stations of the Tōkaidō; woodblock print by [[Hiroshige, c. 1842, from an alternative series of The Fifty-three Stations of the Tōkaidō (Kyōkairi Tōkaidō or Sanoki edition); the mound is explicitly labelled ichirizuka in a later print by Hiroshige II ([http://www.HiroshigeII.net/images/TokaidoEki/46L.jpg ])]] are historic Japanese distance markers akin to milestones. Comprising a pair of earthen mounds (tsuka or zuka) covered in trees and flanking the road, they denoted the distance in ri () to Nihonbashi, the "Bridge of Japan", erected in Edo in 1603. Ichirizuka were encountered and described by Engelbert Kaempfer, c.1690: "serving as a milestone are two hills, facing each other, which are raised up on both sides of the road, and planted with one or more trees."

==Establishment== The Tokugawa shogunate established ichirizuka on the major roads in 1604, enabling calculation both of distance travelled and of the charge for transportation by kago or palanquin. These mounds, to be maintained by "post stations and local villages", were one component of the developing road infrastructure, which also included bridges and ferries; post stations (both shukuba, and the more informal ai no shuku); and tea-houses (chaya). However, the main aim was "official mobility, not recreational travelling": the movement of farmers and women was discouraged, and a system of passports and maintained. By marking the distance from Edo rather than Kyoto, establishing a symbolic point of origin for all movements, the Tokugawa made of mile markers what they would later make of checkpoints: powerful reminders of the government's geopolitical ubiquity and efficacious tools in its appropriation of space.