During the late 2nd millennium B.C. in the Bronze Age, a special type of defensive structure known as nuraghi (for which no parallel exists anywhere else in the world) developed on the island of Sardinia.

• 公元前2000年后期的铜器时代，一种特殊类型的防御建筑在撒丁岛修建起来，这就是举世无双的努拉格。