This venerable Ann Arbor traditional English dancing troupe celebrates its 50th birthday with short performances around town today, including at the Sunday Artisan Market (1 p.m.), at the intersection of Main and Liberty (2 p.m.), and other locations TBA. 1 p.m., Kerrytown Farmers Market pavilion and other locations, check tinyurl.com/a2morris for updated schedule. Free. [email protected].