Flag Facts May 2nd, 2017 Happy Flag Day Poland! Happy Flag Day Poland! Get your Poland flag today. Today Poland commemorates raising their flag on Siegessaule during the Battle of Berlin! 0 Comment Brent Griebling Related posts April 25, 2018 What is a Single-Sided Custom Flag? March 31, 2014 How to Save Money on Flags March 24, 2017 What Size Flag is Best?