Another idea might be to assess the relationship between America and Britain at the time, because the Revolution happened about a century earlier…..

Another idea might be to research the photography of the time, perhaps historical photography or the biographies of certain photographers at the time and the kind of photographic equipment that was used. There was no digital photography and all film had to be put in a black box to be handled and put in the camera since there was no dark room to put the film safely in the camera. Out popular 35 mm print film which is being phased out, is in rolls so we can’t see the film – in essence the roll itself acts as a darkroom so the film isn’t damaged when we put the film in the camera……

Just some thoughts….

http://www.vaxxine.com/mgdsite/year/1877.htm