Final answer:
Archaeologists think that states first evolved around 3500 BC in Mesopotamia, supported by evidence of trade goods and signs of organized warfare at sites like Uru and Tell Hamouda.
Step-by-step explanation:
Some archaeologists believe that states first evolved around 3500 BC in the region of Mesopotamia. This area, known for its rich archaeological finds, is considered by many scholars to be the 'Cradle of Civilization'. It is present-day Iraq and surrounding countries. The evidence of state evolution is supported by findings of trade goods, including pottery, jewelry, and metalwork, as well as signs of warfare and destruction at archaeological sites such as Uru and Tell Hamouda. These indicators suggest the rise of complex societies with controlled resources, detailed production of goods, and established trade networks, much like modern states.