Irish sweat built our great cities.

WHITEHOUSE: President Obama Addresses the Irish People

Mr. MELOY: Eli sells all sorts of random things, sort of walks through the cities, much like Molly Malone from that Irish folk song.

NPR: A Journey with the Decemberists

At that time various groups, above all the Irish, built up party machines that were to dominate the political life of cities like New York, Chicago and Boston for much of the century.

ECONOMIST: A lesson in how to count