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States and territories established in 1821

  • El SalvadorThe Pleistocene epoch left behind the bones of giant ground sloths and rhinoceros-like Mixotoxodon in what is now El Salvador.
  • GuatemalaThe first evidence of human habitation in Guatemala dates to 12,000 BC. Archaeological sites like Sipacate and Escuintla on the central Pacific coast reveal…
  • PeruThe ruins of Caral rise from the arid Supe Valley, dating back to 3000 BCE. This site marks the earliest known civilization in the Americas.
  • GreeceThe year 776 BC marks the first Olympic Games, a moment that signaled the end of the Greek Dark Ages and the beginning of recorded history for these…
  • MissouriMissouri stretches across the heart of the United States, bordered by eight other states. This geographic fact makes it a unique connector in the American…