Because many people mistakenly think a tsunami is a single wave, some return to the beach after the first wave hits, Lopes said. On March 11, 2011, a man in Klamath River, Calif., died after he was swept away by a second wave while taking pictures of the Japan tsunami, Lopes said.
Principate. The Principate is the first period of the Roman Empire, extending from the beginning of the reign of Augustus Caesar to the Crisis of the Third Century, after which it was replaced with the Dominate.
The Roman emperor was the ruler of the Roman State during the imperial period (starting in 27 BC). The emperors used a variety of different titles throughout history. Often when a given Roman is described as becoming emperor in English, it reflects his taking of the title augustus or caesar. Another title often used was imperator, originally a military honorific. Early Emperors also used the title princeps.