Columns originated in Greece and came in three styles. The styles are doric, ionic, and corinthian. Doric columns are plain, ionic columns are slightly decorated, and corinthian columns are heavily decorated. Today, Columns are still used as structural and decorative architectural pieces. Columns are used a lot on Washington D.C.
In Ancient Greece, actors would be in plays as a common pastime. Theater only had 2 variations which were comedy and tragedy. Nowadays, theater has extended to opera houses and has expanded from only comedy and tragedy to other acts such as historical and musical plays.