For St. Patrick's Day, Nicholas Wolf, associate director for research and publishing initiatives at Glucksman Ireland House, NYU's study of Irish and Irish America, discusses the decades-long effort to restore the Irish language after it rapidly declined under British colonial rule. 

Photo: Bilingual Irish-English street name sign, named after St. Patrick, in which 'Port' is the Irish for 'Quay'. Credit: Mucklagh/Wikimedia Commons