South Station opened on January 1, 1899. It underwent a complete renovation in 1985. An intercity bus terminal was added around 2001, replacing one on top of the Central Artery tunnel between Summer Street and Congress Street.
the Boston Convention Center, about a 10 minute walk, or you can take the Silver Line (when it opens) to the World Trade Center stop.
Accessibility
South Station is wheelchair accessible, but finding the elevator to the subway can be a bit tricky - it's in the corridor behind the information booth.
Other Amtrak stations on the Northeast Corridor are generally accessible.
Some MBTA commuter rail stations have no wheelchair access and many of those that do have short elevated platforms that only serve one or two cars. SeeMBTA accessibility.
External links
Amtrak - Boston South Station (http://www.amtrak.com/servlet/ContentServer?pagename=Amtrak/am2Station/Station_Page&c=am2Station&cid=1080080550772&ssid=93)