sentences:  Circle 4’s construction dates between 40 BCE and 220 CE Circle 4 is unique within the lower ceremonial center in that one of Circle 4’s platforms is the north platform for Ball Court 1.In 1999, when Weigand first began excavating Los Guachimontones, a road once existed between Circle 4 and the long lateral platforms of Ball Court 1 resulting in heavy damage to both the guachimonton and the ball court.As a result, the platform that is a part of Ball Court 1 is heavily reconstructed.