Final answer:
Johnny Appleseed's arrival in Ohio and the influx of settlers post the War of 1812 contributed to shaping the state's history.
Explanation:
Johnny Appleseed arriving in Ohio marks a significant event in American history. According to historical records, he moved to Ohio in 1799 after building his first cabin in 1775. His journey and contributions to the region are well-documented. The arrival of settlers during the 'Ohio fever' post the War of 1812 further shaped the state's history.
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