This document summarizes several winter holidays and festivals celebrated in Poland, including Christmas Eve on December 24th, New Year's Eve on December 31st, Grandparents' Day on January 21st-22nd, Valentine's Day on February 14th, Santa Claus Day on December 6th, and Fat Thursday/Shrove Tuesday on February 27th. Each festival is described in one to three sentences providing key details about traditions, origins, and how each event is commemorated in Poland.