Boston’s MBTA (the "T") is famous for being the oldest subway system in North America (opening the Tremont Street subway in 1897). In 1965, the agency introduced its iconic color-coded lines (Red, Green, Orange, Blue). What was the specific, historical, or geographic reason chosen to determine the Blue Line's color?
Leave a comment with your answer.
Because it is sad. Just kidding. Because it passes under Boston Harbor.
DeWain is correct - but more specifically, it was the very first underwater transit tunnel in North America