The term 'Round Table Addresses' refers to the series of meetings held by King Arthur and his knights at the Round Table. The term 'SIRS' is an acronym for the Society of International Round Table Addresses, which was founded in the early 20th century to promote the ideals of the Round Table. The Society of International Round Table Addresses is dedicated to the preservation of the ideals of the Round Table and the promotion of international understanding and cooperation.