388 First indicator: Value 1 - Creation of work
Value 1 indicates the time period of creation or origin of the work/expression, or of the components of an aggregate work/expression considered collectively.
Examples:
046 ## $k07uu/1100$2edtf
130 #0 $aBeowulf
388 1# $aAnglo-Saxon period$2[source code for controlled vocabulary]
[A work originally written between the 8th and 11th centuries A.D.]
046 ## $o-07uu/-05uu$p06uu$2edtf
130 #0 $aBroken laughter
388 1# $aAncient period$2[source code for controlled vocabulary]
[An aggregation of ancient Greek fragments, the dates of which could range from the 8th-6th centuries B.C. to the 7th century A.D.]