Project Page: Rohatyn Interactive Data Map 1846
This page describes the unique features of the Rohatyn Interactive Data Map 1846. This map is part of a collection of historical cadastral maps of towns and villages in Galicia, overlaid onto satellite images of modern locations and annotated with historical data about people and places from archival records and other sources.
For a summary of the larger Gesher Galicia project to present interactive historical data maps, a guide to using the maps, and a summary of the tools used to create this interactive map, see the introduction and overview to the project.
The Historical Map:
The historical map presented here is an 1846 cadastral field sketch of the small Galician city of Rohatyn (now Рогатин in the Ivano-Frankivsk Oblast of western Ukraine). As a field sketch, the numbers shown on the map are house numbers (akin to addresses), not property numbers. The original paper map includes 15 individual sheets and is preserved by the Central State Historical Archives of Ukraine in Lviv (TsDIAL) as record 186.1.668. A longer description of the map and its features is included with the original version of this map, in the cadastral map section of the Gesher Galicia Map Room.
The map version presented here is a complete composite geo-rectified digital image assembled from digital scans (camera shots) of the separate paper map sheets, then tiled, overlaid, and annotated. For more information about the conversion process, see the introduction and overview to the project.
The Base Map:
The base map for this interactive tool is provided by Microsoft Bing, using aerial images provided by Maxar, TomTom, and others. Bing aerial imagery is updated from time to time, and may occasionally include clouds or other obstructions. For more information about the conversion process, see the introduction and overview to the project.
The Records Data:
The data linked to this map has been indexed and organized from the following archived public-domain records:
- 1820 Rohatyn Franciscan survey: TsDIAL 20.9.189, partial index (sheets 1~35)
- 1846 Rohatyn alphabetical property owners' register, with the village of Perenówka: TsDIAL 186.2.21a
- 1846 Rohatyn building parcel register (Bauparzellen Protocoll), with the village of Perenówka: TsDIAL 186.2.21b
- 1870 Rohatyn voter lists (Spis Uprawnionych do Wyborcow Sejmawych): Polish State Archive, Wawel Castle, Krakow, Poland (record # unknown), partial index (Jewish names only)
- 1859-1937 Rohatyn vital records (birth, marriage, death): Polish State Archives, comprising a collection of records from several sources sourced and indexed by the RDRG, including data from:
Portions of the data included here were originally indexed and published by JRI-Poland.
Known Map and/or Data Limitations and Issues:
The cadastral field sketch for Rohatyn was based on a first land survey of the city in 1846, made by hand while the surveyor walked the landscape making preliminary measurements. The sketched geography is very rough, with significant distortion within and between sheets. During graphical assembly of the full map, gaps and overlaps occurred which had to be resolved, sometimes without clear persistent built and/or natural features to anchor the details. Thus the final map includes a measure of guesswork, and probably some mistakes. Distortions in the graphical image and gaps in coverage can be evaluated by comparing the historical and modern maps.
This interactive map excludes data from vital records and other records for which no house number or property number is attached, meaning that the data cannot be tied to a location on the map; refer to the RDRG website for broader genealogical data not shown on this map.
The Project Team:
Data for this map was indexed and organized by members of the Rohatyn District Research Group (RDRG), a web-based Jewish descendants group led by Dr. Alex Feller. The RDRG also funded acquisition of the historical cadastral field sketch by Gesher Galicia and other records acquisitions included in the data set for this map. Jay Osborn filtered and assembled the records data to function in the map, and coordinated the Rohatyn pilot map development within the Gesher Galicia Interactive Data Maps Project.
Gesher Galicia provided project support for the assembly of the digitized map, overlay and alignment of the map to modern geography, and the integration of the records data with the Gesher Galicia data maps project. Funding for software development and project management of the data maps project was provided by the Pamela Weisberger Memorial Fund, in honor of Gesher Galicia's former President.