I do believe the early Egyptians, being as smart as they where used a interesting method of a sundial. It caught the suns shadow and they where able to use it to tell the time.
When Japan bombed Pearl Harbor in 1941 the United States responded by bombing Japan back. They dropped two nuclear bombs, one in Hiroshima and one in Nagasaki. This forced japan to surrender.
"rule of thumb," or simple habit and common sense, and instead use the scientific method to study work and determine the most efficient way to perform specific tasks.
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The Punic Wars were a series of three wars fought between Rome and Carthage from 264 BC to 146 BC. At the time, they were some of the largest wars that had ever taken place. The term Punic comes from the Latin word Punicus (or Poenicus), meaning "Carthaginian", with reference to the Carthaginians' Phoenician ancestry.