<span>El Nino
</span>A change in the water temperature of the eastern Pacific Ocean that produces cooler than usual surface water temperatures. An unusually long period during which rainfall is below average. Used by NOAA to collect data to predict an El Nino<span>.</span>
He was a roman emperor, from Dalmatia and he invented a new way to reign: the "tetrarchie" in french. It means 3 people ruling together to avoid one having too much power. He basically reformed the overall look of The Roman Empire.
The development of the calander shows they can divde the number of minutes hours days month etc in a year. Development of the pyramids shows geometry and engineering. look up to make sure.
A. Add up individuals who came into the area because of reproduction or immigration
