Classical order Classical order An order in architecture is a certain assemblage of parts subject to uniform established proportions, regulated by the office that each part has to perform. Coming down to the present from Ancient Greek and Ancient Roman civilization, the architectural orders are the styles of classical architecture, each distinguished by its proportions and characteristic profiles and details, and most readily recognizable by the type of column employed. The three orders of architecture—the Doric, Ionic, and Corinthian—originated in Greece. To these the Romans added, in practice if not in name, the Tuscan, which they made simpler than Doric, and the
Ionic Greek city of Miletus. This alphabet eventually became the standard Greek alphabet, its use becoming uniform during the Koine era. It was also the alphabet used in the Christian Gospels and the book of Acts. Proto-Greek "ā" > Ionic "ē"; in Doric, Aeolic, "ā" remains; in Attic, "ā" after "e, i, r", but "ē" elsewhere. Proto-Greek "e, o" > Ionic "ei, ou": compensatory lengthening after loss of "w" in the sequences "enw-, erw-, onw-, orw-". In Attic, "e, o" is not lengthened. Ionic sometimes removes initial aspiration (Proto-Greek hV- > Ionic V-). Ionic contracts less often than Attic. Proto-Greek "*kʷ" before