1956/05/21-1956/05/21
https://w3id.org/zericatalog/date/1956-05-21-1956-05-21 an entity of type: E52_Time-Span
1956-05-21-01-01T00:00:00Z
1956-05-21-01-01T00:00:00Z
1956/05/21-1956/05/21