I know that it may be just a detail but whenever I see depictions of the Roman Senate in session (in movies, paintings etc) senators are seated in a semicircular fashion around an open space where the speaker stands and addresses the Senate. Uhm… Sorry. That’s actually wrong.

Senators’ seats -at least since J.Caesar’s time- were arranged in straight and parallel lines on either side of the interior of the Curia Julia (i.e the Senate House).