ikria (ἴκρια) : IH-kree-a

(Greek; the word is plural, no singular: the planks of a deck, or more generally, a platform or stage). The temporary scaffold seating in early Greek theatre consisting of tiered, wooden bleachers resting on wooden supports. The ancient writers Photius, Eustathius, Hesychius, and the Suda cite the collapse of temporary ikria at the Athens Agora during the 70th Olympiad (500-496 BCE) as motivation for the construction of the permanent Theatre of Dionysos at the foot of the Athens Acropolis. (Dinsmoor 120).