Questions: Regarding pre-Columbus exploration, explorers settled Iceland, Greenland, and believed to have settlements in the Americas 500 years prior to Columbus. Norman Gaelic Iberian Norse

The answer is Norse.

The Normans were a people who originated from the region of Normandy in France. They are known for their conquests in England and parts of Italy, but they are not known for pre-Columbus exploration of the Americas.

The Gaelic people are associated with the Celtic cultures of Ireland and Scotland. While they have a rich history, there is no substantial evidence to suggest that they explored or settled in the Americas before Columbus.

The Iberians are from the Iberian Peninsula, which includes modern-day Spain and Portugal. While they were significant explorers during the Age of Discovery, their exploration of the Americas began with Columbus in 1492, not 500 years prior.

The Norse, also known as Vikings, are well-documented to have explored and settled in parts of the North Atlantic, including Iceland and Greenland. There is also archaeological evidence of Norse settlements in North America, specifically at L'Anse aux Meadows in Newfoundland, Canada, dating to around 1000 AD, which is approximately 500 years before Columbus's voyage.