Four-photograph time-lapse view of Union cavalry crossing a pontoon bridge over the James River in Virginia during the American Civil War, 1864. Link to animated version in comments. [3000x2322] #HistoryPorn #history #retro http://ift.tt/1STocMT (Histolines) Tags: bridge history river during james virginia timelapse war crossing view union over version retro civil american link timeline animated comments cavalry pontoon 1864 vinatage historyporn histolines fourphotograph 3000x2322 httpifttt1stocmt