Units 1 and 2 Cassie Thornton By cassiethornt 38,000 BCE Modern humans, called Cro-Magnons, emerge Period: 5000 BCE to 500 BCE Agriculture develops in Egypt and Mesopotamia 3300 BCE Mesopotamians/Sumerians settled around Tigris and Euphrates 3200 BCE Unification of Egypt into one kingdom 3000 BCE Neolithic Age begins 2500 BCE Indus Valley people plan and build first cities 1700 BCE Indo-Europeans begin to migrate 1000 BCE Minor kings began setting up kingdoms in India 750 BCE Hindu teachers begin interpreting Vedic hymns Period: 563 BCE to 483 BCE Siddhartha Gautama lives