sentences:  The founders of Oregon and Rochelle arrived from New England; they were "Yankees", descendants of English Puritans who had settled New England in the 1600s.They were part of a wave of farmers who migrated into the Northwest Territory in the early 1800s, their trek eased by completion of the Erie Canal in 1825.They found virgin forest and wild prairie, and quickly laid out farms, constructed roads, erected government buildings and established post routes.