: aboutUrlhttp://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 | : _hisco:0_5_http://data.socialhistory.org/resource/hiscam/v131/u1/ Create a prefix for http://data.socialhistory.org/resource/hiscam/v131/u1/ Hit Enter to save Double click to create a prefix | : 2017-10-31T17:58http://iisg.amsterdam/hiscam_u1/provenance/e584db0b/ Create a prefix for http://iisg.amsterdam/hiscam_u1/provenance/e584db0b/ Hit Enter to save Double click to create a prefix |