Pleiades Data Dumps
===================

Locations, names, and places are written each morning to separate tables in CSV
format. The first row of each file contains column names. All files are UTF-8
encocded. The "pid" column of locations and names tables can be joined to the
"id" column of a places table.

Common columns
--------------

Columns shared by all tables:

id: string
  Unique identifier for a location in the context of a place

title: string
  Dublin Core title of the location resource

description: string
  Dublin Core description of the location resource

uid: string
  Framework UID of resource for project use

path: string
  When appended to "http://pleiades.stoa.org/" forms the resource's URL

creators: string
  Dublin Core creators of the resource

created: string
  Dublin Core creation date of the resource in RFC 3339 format

modified: string
  Dublin Core modification date of the resource in RFC 3339 format

timePeriods: string
  One or more of 'A' (1000-550 BC), 'C' (550-330 BC), 'H' (330-30 BC), 
  'R' (AD 30-300), 'L' (AD 300-640)

timePeriodsKeys: string
  Comma-separated sequence of time periods keys such as "archaic,classical".
  These keys maybe be concatenated with the string 
  "http://pleiades.stoa.org/vocabularies/time-periods/" to produce resolvable
  Pleiades URIs.

timePeriodsRange: string
  Comma separated numeric values a,b where a is the minimum year of any
  attested time period (see minDate) and b is the maximum year of any attested
  time period (see maxDate).

reprLatLong: string
  Comma separated decimal latitude,longitude for a representative point. The
  individual values are also provided in reprLat and reprLong columns.

location_precision: string
  If 'precise', the representative point is an attested location, if 'rough'
  it is the centroid of a bounding box.

maxDate: numeric
  The maximum date (decimal CE year) of any attested time period.

minDate: numeric
  The minimum date (decimal CE year) of any attested time period.

reprLat: numeric
  Latitude in decimal degrees N of the equator of the object's representative 
  point.

reprLat: numeric
  Longitude in decimal degrees E of Greenwich of the object's representative 
  point.

Location Columns
----------------

Location tables have additional columns:

pid: string
  Unique identifier for the place container within the site

geometry: string
  Geometry and coordinates in GeoJSON format

Name Columns
------------

Name tables have additional columns:

pid: string
  Unique identifier for the place container within the site

nameAttested: string
  Attested spelling of ancient name, not necessarily the same as the "title"

nameLanguage: string
  Short identifier for language and writing system associated with the 
  attested spelling. See 
  http://pleiades.stoa.org/vocabularies/ancient-name-languages.

nameTransliterated: string
  Transliteration of the attested name to Roman characters following the
  Classical Atlas Project scheme.

Place Columns
-------------

Place tables have additional columns:

featureTypes: string
  Comma-separated list of feature types such as "settlement, temple"