Final answer:
The Eastern Agricultural Complex emerged around 7000 BCE in the Eastern Woodlands of North America. Squash and bottle gourds were domesticated during this period.
Step-by-step explanation:
The Eastern Agricultural Complex emerged about 7000 BCE in the eastern woodlands of North America, specifically in the reaches of the Mississippi River valley in the Eastern Woodlands. It is believed that people in this region adopted barley and wheat cultivation techniques from the Near East. Two domesticates from this period include squash and bottle gourds, which were cultivated around 8000 BCE.