http://www.rssboard.org/rss-specification 720 http://catalog.wrhs.org/collections/search?f4-subject%3DHistory;f5-subject%3DMaryland;f6-subject%3DAmerican%20newspapers Results for your query: f4-subject=History;f5-subject=Maryland;f6-subject=American newspapers Thu, 01 Jan 1970 12:00:00 GMT http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc http://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT