How has the MBTA changed / grown / shrunk during the past 117 years?
Check out the visualization below to see the birth of the Green Line in 1895, the expansion of the Red Line through 1985, and the "repositioning" of the Orange Line. Descriptions of the changes included under the map.
http://www.vanshnookenraggen.com/_index/2012/04/an-animated-history-of-the-mbta/ [3]
(Permission granted by author)