GLAMhack17 Data Package

This dataset contains metada records of (mostly) historic coins. Each record includes a geographical coordinate (or a bounding box), which represents the find spot. Most of the records also include a time interval, which represents the dating of the coin.

Data Format and Contents

The data files are .txt plaintext files. Each row of the file contains one JSON object. Each JSON object contains:

• basic item metadata (item title, 'homepage' of the item, name of the providing institution)
• geographic bounds - this is always given as a bounding box, although it can be a point coordinate (in this case min_lon = max_lon, min_lat = max_lat)
• temporal bounds - this is always given as an interval of integer numbers (proleptic Gregorian calendar years, minus denotes BCE dates), although it can be a single year (in this case from = to)
• image URLs - always given as an array, with at least on URL

Files

• For those interested in building a map-based visualization, the recommended dataset is: data/coins-with-coordinates.json.txt.zip.

• Those interested in building (map and) timeline-based visualizations should check out: data/coins-with-time.json.txt

Both datasets are identical, except that the "timeline" dataset excludes all records that have no date information. The "map" dataset contains 74.142 records with a total of 118.420 image URLs. The "timeline" dataset contains 59.079 records with a total of 88.838 image URLs.

Sample Record

{  
   "geo_bounds":{  
      "min_lon":23.8404,
      "max_lat":40.8189,
      "min_lat":40.8189,
      "max_lon":23.8404
   },
   "title":"Tetradrachm of Antigonus II Gonatas, Amphipolis, 277 B.C.-239 B.C. 1990.18.6.",
   "temporal_bounds":{  
      "to":-239,
      "from":-277
   },
   "image_urls":[  
      "http://coins.lib.virginia.edu/images/coins/screen/n1990_18_6_obv.jpg",
      "http://coins.lib.virginia.edu/images/coins/screen/n1990_18_6_rev.jpg"
   ],
   "provider":"The Fralin | UVa Art Museum Numismatic Collection",
   "homepage":"http://coins.lib.virginia.edu/id/1990.18.6"
}

Attribution and License

This dataset contains data provided through Pelagios Commons from the following original sources:

• American Numismatic Society. Data licensed under the Open Data Commons Open Database License ODbL.

• The Fralin | UVa Art Museum Numismatic Collection. Data licensed under the Open Data Commons Open Database License ODbL.

• finds.org.uk. Data published by the The Trustees of the British Museum under the Creative Commons Attribution 3.0 (CC BY 3.0) license.