Ionic order a version of such a perfectly four-sided Ionic capital; Scamozzi's version became so much the standard, that when a Greek Ionic order was eventually reintroduced, in the later 18th century Greek Revival, it conveyed an air of archaic freshness and primitive, perhaps even republican, vitality. The Ionic column is always more slender than the Doric; therefore, it always has a base: Ionic columns are eight and nine column-diameters tall, and even more in the Antebellum colonnades of late American Greek revival plantation houses. Ionic columns are most often fluted. After a little early experimentation, the number of hollow flutes in
Corinthian helmet classical Corinthian helmet fell out of use among the Greeks in favour of more open types, the Italo-Corinthian types remained in use until the 1st century AD, being used, among others, by the Roman army. Apparently (judging from artistic and archaeological evidence) the most popular helmet during the Archaic and early Classical periods, the style gradually gave way to the more open Thracian helmet, Chalcidian helmet and the much simpler pilos type, which was less expensive to manufacture and did not obstruct the wearer's critical senses of vision and hearing as the Corinthian helmet did. Numerous examples of Corinthian helmets