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.
This was nothing new in the fourth century, but the decline of Roman urban life in the Western half of the Empire during the Third Century Crisis abetted these abuses. The late Roman Empire had no public police forces. During the Principate, urban authorities had been responsible for enforcing law and punishing crime.