The time period of creation or origin of the work or expression (including aggregate works), or of the works or expressions contained in an aggregation.
388 | 1#$aAnglo-Saxon period$2[source code for controlled vocabulary] | ||||||||
388 | 1#$aAncient period$2[source code for controlled vocabulary] | ||||||||
388 | 1#$a19th century$2[source code for controlled vocabulary] | ||||||||
388 | 2#$a20th century$a21st century$2[source code for controlled vocabulary] | ||||||||
388 | 1#$a1781-1791$2fast | ||||||||
388 | 1#$a18th century$2[source code for controlled vocabulary] | ||||||||
388 | 2#$a1980$2fast |