SIGHTING // TIMELINE_RECORD Disk sighting reported in Severn, USA Event date 2010 Feb 21 Location Severn, MD, USA Country United States Record summary unknown object drifts over roof line then disappears This timeline entry summarizes an external source. Follow the source link to review the underlying material and its context. Review primary source Open in interactive timeline Previous record Circle sighting reported in Darlington, USA Next record Light sighting reported in Belton, USA