Common Sense (Paine)
Philadelphia, in what is now the United States, sits on the Delaware River roughly halfway along North America's eastern seaboard — exactly the mid-Atlantic coastal position the title clue described. There, on January 10, 1776, Thomas Paine published his pamphlet 'Common Sense', a plain-language argument for independence from Britain that sold hundreds of thousands of copies and dramatically shifted colonial public opinion.
Philadelphia at this time was one of the largest cities in the British Atlantic world, positioned where the Delaware River gave deep inland access from the coast — a geography that made it a natural hub for trade, print, and political ideas flowing between Europe and the American interior. The Appalachian Mountains to the west and the Atlantic to the east funnelled settlement and commerce through this narrow coastal plain, making cities like Philadelphia the nerve centres of early American colonial life.
This event appears in EraPin — a daily game where you decode geographic clues to place historical events on the map. Five rounds. Free to play.
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This event in EraPin gives students practice in absolute and relative location reasoning — a core skill in the C3 Framework and most geography standards.
The clue uses spatial language students must decode:
Combined with the era markers (Pamphlets, hand-press broadsides, flintlock muskets, and tricorn hats.), students reason their way to Philadelphia, Thirteen Colonies in 1776 without prior knowledge of the specific event. Each clue is designed to teach geographic literacy, not just test it.
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Source: EraPin event archive. Historical details drawn from publicly available sources including Wikipedia.