Immigrants land in Boston

The BPL has
posted some incredible photos of Boston from the early decades of last century.
Adam flagged a couple of great ones showing the site of what’s now City Hall. The one posted here is of immigrants landing in Boston in 1920. It’s right out of a movie – all the passengers lined up at the bow looking upon the New World. The caption reads: “SS Canopic lands in Boston, 4000 immigrants flock to U.S. daily.”
Where did they come from? Ireland, Italy, Russia? Where? My guess is Italy. It’s an amazing photo.