What roman author described the technique of Opus quadratum?
Opus quadratum Opus quadratum is an ancient Roman construction technique, in which squared blocks of stone of the same height were set in parallel courses, most often without the use of mortar. The Latin author Vitruvius describes the technique.
Ovid Publius Ovidius Naso (] ; 20 March 43 BC – AD 17/18), known as Ovid ( ) in the English-speaking world, was a Roman poet who lived during the reign of Augustus. He was a contemporary of the older Virgil and Horace, with whom he is often ranked as one of the three canonical poets of Latin literature. The Imperial scholar Quintilian considered him the last of the Latin love elegists. He enjoyed enormous popularity, but, in one of the mysteries of literary history, was sent by Augustus into exile in a remote province on the Black Sea, where he remained until his death. Ovid himself attributes his exile to "carmen et error", "a poem and a mistake", but his discretion in discussing the causes has resulted in much speculation among scholars.