Gothic architecture originally referred to the style of medieval architecture that emerged in the 12th century and reached its peak in the 13th century. It is characterized by its pointed arches, ribbed vaults, and flying buttresses. The term "Gothic" was first used in a derogatory way by Italian Renaissance architects, who saw it as an inferior style compared to classical Roman and Greek architecture. The word "Gothic" comes from the Italian word "Gothi", which was used by the Romans to refer to the Goths, a Germanic people who sacked Rome in the 5th century AD. The term "Gothic" was later used to refer to the Middle Ages in a negative way, and this association with darkness, barbarity, and irrationality carried over to the architectural style. However, in the 19th century, there was a Gothic Revival movement, which led to a renewed appreciation for the Gothic style and its influence on modern architecture.