KEY 1
Commonwealth Day is a day to remember, celebrate and learn about the Commonwealth. On Commonwealth Day, the Head of the Commonwealth, Her Majesty Queen Elizabeth II delivers her Commonwealth Day Message, and leads a multi- faith observance at London's Westminster Abbey . This is attended by representatives of Commonwealth countries , and children offer the flags of member nations for blessing. Flags also fly in Parliament Square and at Marlborough House in London, where the Secretariat is housed.