Ancient Greeks designed three different columns: Doric, Ionic, and Corinthian style. So to answer your question: the Ancient Greeks.
From the dorian region where it was invented.
Perry's Victory and International Peace Memorial, A 352-foot (107 m) monument — the world's tallest Doric column — was constructed in Put-in-Bay, Ohio en.wikipedia.org/wiki/Perry%27s_Victory_and_International_Peace_Memorial
Doric is an adjective referring to type of people or things. The Greek peoples were of different tribal/cultural origins - Achaeans, Aeolians, Ionians, Dorians. The Dorians included the Doric people of Corinth and Sparta.
doric have an mutule, regula, tainia, metope, and ionic has small base at bottom of column, more flutes, double curve in stone under architrave, on the architrave, continious frieze.
Trajan's column was built during AD 106-113
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Doric
A Doric
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The doric columns in Greek architecture are typically baseless, fluted, and with a smooth transition to the abacus (wider, square supporting structure above the column). Roman doric columns included a wider base and often beveled top moldings.
Doric is a type of Greek architectural style. The Doric column is an example of the style. http://www.cmhpf.org/kids/dictionary/classicalorders.html
Corey Moffett did
From the dorian region where it was invented.
Ionic, Doric
No. The Doric style was named after the Dorians, one of the four ethnic groups of classical Greece.
Greek Ionic.