the doric and ionic are greek.
Those are two of the three styles of columns (support pillars) found in classical
ancient Greek architecture. The third one is "Corinthian".
Because they required much more time and effort with the more elaborate designs involved than Ionic or Doric which are simpler.
From what I know they are Ionic because or the scrolls at the top and in pictures of the white house you can see that clearly. :]
It is ionic
IONIC BOND
A ionic bond formed by,the cations,2K +and the anion,O 2-K2O===== Potassium oxide
ionic columns
Ancient Greeks designed three different columns: Doric, Ionic, and Corinthian style. So to answer your question: the Ancient Greeks.
The three orders of Greek architecture are Doric, Ionic and Corinthian.
Doric, ionic, and corinthian
Which style are you talking about. It will be Corinthian, Ionic or xxxxx, but unless you give a description of it, no one can give you an answer. Acanthus leaves - Corinthian Ram's horns - Ionic Square - Doric
Doric, Ionian, and Corinthian are the names of the three styles of the capitals on Greek columns. The capital could be loosely called the "tops" of the columns. The Doric style is more or less plain, with just a band running around it. The Ionic style has a wide band that curls under. The Corinthian style is the most elaborate with carved foliage in usually three tiers.
Doric
The three main columns of the Parthenon are the Doric, Ionic, and Corinthian columns. They represent different styles of ancient Greek architecture.
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
The columns were doric style
The Greeks have different types of columns for different types of places. Doric columns were the shortest and plainest, Ionic columns were slightly fancier and taller than Doric columns, and Corinthian columns were the most elaborate and tallest.
the first classical pillar is the DORIC style,which is a plain pillar.the second is the IONIC style,which has a scrole shape at the top.the third is the CORINTHIAN style pillar which has a decorative top