Minutes: Westfield Geography Council, Meeting 4
1The Geography Council at Westfield Middle School met on March 4 to debate this motion: "The first civilizations grew in river valleys mainly because rivers supplied water in dry lands." Chair Rosa Delgado shared a climate table and map notes for four sites where early cities grew. Each side gave an opening argument and one rebuttal.
2Priya Natarajan spoke for the motion. "Look at the rain column," she said. "Geographers often say that growing wheat or barley with rain alone takes roughly 10 inches of rain a year or more. Memphis gets about 1 inch. Ur and Mohenjo-daro get only a few inches. In places like these, rain could not grow grain, but the rivers could. Each year the Nile flooded and left behind a layer of dark silt, and Sumerian farmers dug canals to carry Euphrates water to their fields."
3Jonah Whitfield spoke against the motion. "Rivers matter, but they are not the whole story," he said. "The Lena River in Siberia is one of the longest rivers in the world, yet it is frozen for much of the year, and no early civilization grew beside it. Now check the latitudes. All four sites lie in a warm band between about 27° and 36° north, where crops can grow for many months of the year. Rivers can also be dangerous. The Huang He has flooded so often and so badly that it was nicknamed 'China's Sorrow.'"
4In her rebuttal, Priya answered, "Warmth alone does not feed a city. The Sahara lies at about the same latitude as Memphis, and few people have ever lived in its open sands. As for floods, people who learned to predict and control them turned a danger into a gift."
5"Then people deserve credit, too," Jonah replied. "A river did not dig canals or build earth banks by itself. Farmers had to plan, work together and keep track of the floods year after year. Water was the raw material, but a warm climate and human effort turned it into a civilization."
6Before the vote, the chair asked every delegate to write a final claim using evidence from the minutes, the table and the map notes.