America is turning 250 this year, celebrating her semiquincentennial. The word itself is a mouthful, but the country is celebrating her liberty, alongside her birthday. Dr. Tim Johnson has taught history at Lipscomb for 35 years. To close out his final semester with Lipscomb, Johnson gave a speech at Beaman Library’s event honoring America’s 250th anniversary. The topic of his speech? How America’s Founders created something, with the Declaration of Independence, that was powerful, unique and creative, and deserves to be honored and studied to this day. “We tend to look at great events of the past as if they were inevitable,” Johnson explained. “It seems obvious that the colonists…