1950/ ca.-1970/ ca.

https://w3id.org/zericatalog/date/1950-1970 an entity of type: E52_Time-Span

1970-01-01T00:00:00Z 
1950-01-01T00:00:00Z 
1950-1970 
1950/ ca.-1970/ ca. 
1950/ ca.-1970/ ca. 
<https://w3id.org/zericatalog/date/xx>
crm:E52_Time-Span

data from the linked data cloud