Natural disasters in China divine retribution: "tianzai" (天災), literally 'heavenly disaster'. In ancient beliefs, natural disasters were seen as Heaven’s response to immoral human behaviour, whereby the conduct of different individuals carried different weights. While the behaviour of common people ranked last, the actions of bureaucrats had a greater effect. Given that in Imperial China the emperor's behaviour was believed to be the most important, popular belief was that the emperor should attempt to prevent disasters by ensuring his conduct was in following with moral codes – and if a disaster should occur, he was responsible for addressing the consequences. According to the Overseas
Flood control in the Netherlands system. In modern times, flood disasters coupled with technological developments have led to large construction works to reduce the influence of the sea and prevent future floods. The Greek geographer Pytheas noted of the Low Countries, as he passed them on his way to Heligoland around c. 325 BCE, that "more people died in the struggle against water than in the struggle against men". First-century Roman author Pliny wrote something similar in his "Natural History": There, twice in every twenty-four hours, the ocean's vast tide sweeps in a flood over a large stretch of land and hides Nature's everlasting controversy