Read this: The term "Gothic architecture" originated as a pejorative description. Giorgio Vasari used the term "barbarous German style" in his Lives of the Artists to describe what is now considered the Gothic style, and in the introduction to the Lives he attributes various architectural features to "the Goths" whom he holds responsible for destroying the ancient buildings after they conquered Rome, and erecting new ones in this style. At the time in which Vasari was writing, Italy had experienced a century of building in the Classical architectural vocabulary revived in the Renaissance and seen as evidence of a new Golden Age of learning and refinement.

What period was the Classical architecture vocabulary forgotten?
What is the answer? (If it cannot be answered, return "unanswerable")
unanswerable