 If the first period of France's preeminent achievement was the Gothic, and the second, the eighteenth century, the longer tradition of French architecture has always been an esteemed one.The architecture of Ancient Rome at first adopted the external Greek architecture and by the late Republic, the architectural style developed its own highly distinctive style by introducing the previously little-used arches, vaults and domes.A crucial factor in this development, coined the Roman Architectural Revolution, was the invention of concrete.