I could tell by looking at this building that it predated the Civil War at the very least, as Neo-Classical architecture of several American styles was generally in style from the Revolution until then. I was quite surprised, however, to find out that it dates to 1791, making it one of the oldest buildings in Saratoga, but GigiSaratoga (on Flickr) has now informed me that this building is really from 1856. As an institution, though, this was the first church to be established in town (umm...unless I'm misinterpreting what I'm being told).