During the resulting search, he produced "the first perfectly accurate map [of Jerusalem], even in the eyes of modern cartography",[3] and identified the eponymous Wilson's Arch. He was unable to find a new source of water.[4]
Over a century after the survey, Dan Bahat described it as "a watershed in the exploration of Jerusalem and its past",.[5]The Jerusalem Post said that Wilson's efforts "served as the basis for all future Jerusalem research".[6]
The survey provided the foundation and impetus for the creation of the Palestine Exploration Fund.[7] The first meeting of the Fund took place on 22 June 1865, less than a week after the completion of the Ordnance Survey, and Charles Wilson was appointed by the Fund as the Chief Director of their proposed exploration of the rest of Palestine.[5][8] In July 1866 Dean Stanley described the Ordnance Survey as a "sort of pre-historic stage of our Palestine Exploration Fund".[9]
It was the most influential and reliable map of Jerusalem until the British Mandate's Survey of Palestine, which published a 1:2,500 map of the Old City of Jerusalem in 1936.[10]
The cost of providing the Royal Engineers surveyors (Wilson and his team) was covered by the British Government's War Office.[12] The introduction to the survey stated that the £500 cost of the survey was funded by the wealthy Angela Burdett-Coutts, 1st Baroness Burdett-Coutts, whose primary motivation was to find better drinking water for those living in the city. However, the issue of “water relief” to the city was subsequently sidelined; in the words of Moscrop “the issue just vanishes.” No improvements were made to the water supply until the end of the century.[7]
As Austen Henry Layard made clear at the first public meeting of the PEF on 22 June 1865, the Ordnance Survey had been conducted “under the auspices of the War Department and with the sanction of the Government”[13]
Legacy
One of the survey's most significant aspects was that it was the first work to investigate the underground features of the Temple Mount (referred to in the survey as the Haram As-Sharif), such as its cisterns, channels and aqueducts.[14]
Archaeologist Shimon Gibson summed up the legacy of the Ordnance Survey of Jerusalem as follows (underline added): [15]
What is quite clear is that a major change in the character of the exploration of ancient Jerusalem occurred in the 19th century, with a fascination for the past of the city, fanciful or otherwise, being replaced by that of a scientific concern for the tangible antiquities of the city. The Ordnance Survey conducted by Wilson in 1864 and 1865 marks this turning point. The ancient past of Jerusalem was no longer a matter for armchair scholarly discourse, turning upon the credibility and background of a given scholar, but had now become a matter for clear-cut scientific rigor, which could only be based on facts obtained in empirical fashion, whether through the taking of exact measurements, photography, or excavations in the ground.
The names of streets, buildings and points of interest were collected by Carl Sandreczki of the Church Mission Society and two assistants.[16] Sandreczki's list, which included the names written in Arabic, is an invaluable resource as it contains many items that have otherwise been lost.[17]
“Institutionalization.” Finding Jerusalem: Archaeology between Science and Ideology, by Katharina Galor, University of California Press, Oakland, California, 2017, pp. 28–42. JSTOR, www.jstor.org/stable/10.1525/j.ctt1pq349g.9.
Bahat, Dan (1980). "Introduction: The Ordnance Survey and its contribution to the study of Jerusalem". Ordnance Survey of Jerusalem (Facsilime ed.). Ariel Publishing House.
^Foliard 2017, p. 42a: “Of the many institutions involved in surveying and mapping the Orient, the Ordnance Survey might seem the most unlikely. It had developed as the main mapping organization for the British Isles and was placed under the authority of the WO in 1855. Its surveys had been strictly limited to the United Kingdom until that point. Despite this, the institution participated in one of the most systematic mapping projects of the mid- Victorian age in the East. Henry James, its director between 1854 and 1875, was keen to enlarge the scope of its surveys and, in a break with its normal practice, sponsored a survey of Palestine. The first expedition explored Jerusalem in 1864–65.”
^Gibson 2011, p. 29: Gibson cites: “Report, July 23rd 1866,” PEF Proceedings and Notes, 1865–69: 19".
^PALESTINE: ANNUAL REPORT, 1936, OF THE DEPARTMENT OF LANDS AND SURVEYS, Empire Survey Review, 4:28, 362-380, DOI: 10.1179/sre.1938.4.28.362, pages 368, 368: "In 1936 a complete map of the Old City of Jerusalem was published on the scale 1/2,500. The only previous map of the Old City was that made in 1865 by Sir Charles Wilson, previously mentioned. This map is apparently often called by writers the Ordnance Survey of Jerusalem! Anyhow, it proved itself worthy of the title, for Lieut-Col F. J. Salmon states that it was sufficiently accurate to be used as the framing of the new map. The old map showed no more than the streets and principal edifices; the new shows all the structures… Large-scale maps were also undertaken, including a 1/2,500 plan of the Old City of Jerusalem, previously mentioned. Provisional plans of Jerusalem and environs, on a scale of 1/5,000, were drawn and printed, though the survey was held up by the disturbances to a degree which is obviously not overestimated. These will subsequently be reduced to 1/10,000-a general map in demand for the city."