Casimir Pulaski Day is a holiday observed in Illinois on the first Monday of every March in memory of Casimir Pulaski (March 6, 1745 – October 11, 1779), a Revolutionary War cavalry officer born in Poland as Kazimierz Pułaski. He is known for his contributions to the U.S. military in the American Revolution by training its soldiers and cavalry.
In a letter General Pulaski wrote to George Washington, he said, ‘I came here, where freedom is being defended, to serve it, and to live or die for it.’