Casimir Pulaski Day
March 6, Monday
Illinois

Casimir Pulaski Day is a local holiday officially observed in Illinois, on the first Monday of March in memory of Casimir Pulaski, a Revolutionary War cavalry officer born in Poland as Kazimierz Pułaski. He is praised for his contributions to the U.S. military in the American Revolution and known as "the father of the American cavalry".
Casimir Pulaski Day is celebrated mainly in areas that have large Polish populations, such as Chicago, Bloomington, and Du Bois. The focus of official commemorations of Casimir Pulaski Day in Chicago is at the Polish Museum of America where various city and state officials congregate to pay tribute to Chicago's Polish Community.