Flag Facts June 6th, 2017 Happy Flag Day Sweden! Swedish flags should only be used for flying and nothing else. When the flag life has ended they burn their flag in order to retire it properly. 0 Comment Brent Griebling Related posts December 10, 2016 Happy Birthday Mississippi! September 30, 2019 Did you know that your flag can be cleaned? February 15, 2017 Happy Birthday Canada!