Few people could name their city's "sister cities." Fewer could explain why the moniker even exists.
The United States began forming sister city partnerships in 1956, in an effort to foster meaningful cultural exchanges. Baltimore's own connections began 40 years ago, when Mayor William Donald Schaefer reached out to other, mostly port cities. Gbarnga, Liberia, signed on first in 1973. Bremerhaven, Germany, is the most recent addition, joining in 2007.