A quick Google search about Polish contributions to civilization uncovers several forums displaying a lot of pride and a little touchiness. Pope John Paul, Nicolaus Copernicus, Frederick Chopin, a host of mathematicians et al and a little thing like being Christendom’s bulwark against Ottoman expansion fall into the pride column. Things get a little touchy, however, if some clown suggests “kielbasa.” So, let’s tread lightly here as we suggest, while in no way diminishing Poland’s many contributions, that if that great people gave us nothing else BUT kielbasa, it would still be one of the top three nations in history. (We really, really dig kielbasa.) Celebrate Polish dance, music and culture — and snack on some great sausage, along with pierogi (dumplings), bigos (stew), paczki (doughnuts) — at the first Dallas Polish American Heritage Festival, noon to 9 p.m. Sunday in Klyde Warren Park, 2012 Woodall Rodgers Freeway. It’s free.