Free and open to the public, the 31st anniversary St. Armands Circus Ring of Fame ceremony will welcome its Class of 2018: Risley artists The Fredonias, UniverSoul Circus founder and owner Cedric Walker, polar bear trainer Ursula Böettcher, trapeze artists The Ramon España Family — The Flying Españas, and clown Chuck “Chucko” Sidlow. The ceremony includes a performance by Windjammers, a circus band featuring 60 musicians conducted by Andrew Glover. 1-3:30 p.m. Saturday; St. Armands Circle Park; 410-812-9297; circusringoffame.org