The nickname was Polonia.And it simply came from the people who call themselves POLAK.POLONIA:The Land of The POLaks.:-)

Not too imaginative. 'I'd like to add the info on the Polish flag. Its nickname is "bialo-czerwona" ("bia³o-czerwona"), which means "white-red". ' Nickname: http://www.crwflags.com/FOTW/flags/pl.html#nn

1) "The nickname of Poland, Ohio is of the Bulldogs." http://www.answerbag.com/a_view/715038 2) the "European Tiger" "TIGER was founded in 2000 at the initiative of Professor Grzegorz W. Kolodko, the Director of TIGER and a key architect of Polish economic success, who as First Deputy Premier and Minister of Finance led Poland to the OECD. During his tenure in the government (1994-97) and based on his program, Strategy for Poland, the annual rate of growth averaged an astonishing 6.4 percent. This put Poland in the undisputed forefront of successful transition and made it the fastest growing economy in Europe. The stellar performance earned Poland a nickname of the "European Tiger" and Kolodko was nominated as the Best Minister of Finance in East Central Europe in 1996." Source and further information: http://www.tiger.edu.pl/english/onas/main.htm 3) "Polonia (personification), a painting by Jan Matejko, symbolically representing Poland" "Polonia is the Polish diaspora, originally the Latin for Poland." Source and further information: http://en.wikipedia.org/wiki/Polonia_%28disambiguation%29 Further information: - "The symbolic depiction of a country as a woman called by the Latin name of that country was common in the 19th Century (see Germania, Britannia, Hibernia, Helvetia)." http://en.wikipedia.org/wiki/Polonia_%28personification%29 - "Polonia, the name for Poland in Latin and many Romance and other languages, refers in modern Polish to the Polish diaspora—people of Polish origin who live outside Polish borders. There are roughly 15–20 million people of Polish ancestry living outside Poland, making the Polish diaspora one of the biggest in the world." http://en.wikipedia.org/wiki/Polonia 4) "The lofty calling of Poland and her readiness to fight “for your and our freedom” merited her the honorable nickname of the “bulwark of Christianity”, and in later times, of the “inspiration of the nations”. " Source and further information: http://www.newpoland.com/ww2.htm