: propertyUrlhttp://www.w3.org/ns/csvw# Create a prefix for http://www.w3.org/ns/csvw# Hit Enter to save Double click to create a prefix | : hiscohttp://data.socialhistory.org/resource/hiscam/v131/ Create a prefix for http://data.socialhistory.org/resource/hiscam/v131/ Hit Enter to save Double click to create a prefix | : 2017-10-31T17:56http://iisg.amsterdam/hiscam_gb/provenance/10a63c0c/ Create a prefix for http://iisg.amsterdam/hiscam_gb/provenance/10a63c0c/ Hit Enter to save Double click to create a prefix |