def get_pulaski_day(self, year):
day = self.get_nth_weekday_in_month(year, <NUM_LIT:3>, MON)<EOL>return (<EOL>day,<EOL>"<STR_LIT>"<EOL>)<EOL>
Return Casimir Pulaski Day.

Defined on the first MON of March.
ref: https://en.wikipedia.org/wiki/Casimir_Pulaski_Day