Field: Earliest publication date

Field used across 3 tables

Type: Int
Unit: year
Here are the fields and their respective occurrence:
Table Field Description Distinct values Fill rate
book series earliest publication date Earliest year with a recorded publication 100 100.0%
book publishers earliest publication date Earliest year with a recorded publication 169 99.9%
book subjects earliest publication date Earliest year with a recorded publication 155 100.0%