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The '''European discovery of America''' opened up a [[New World]] to [[Western Christendom]].  

The '''European discovery of America''' opened up a [[New World]] to [[Western Christendom]].  

Although [[Vikings]] had colonized Greenland and visited Canada, news of these lands was unknown to [[Europe]]ans. The [[Eurasia]]n and [[Africa]]n continents were the only land masses known to Western civilization throughout [[Medieval]] times and into the [[Renaissance]]. Even the true [[circumference]] of the [[Earth]] was not clearly known.  

Although [[Vikings]] had colonized Greenland and visited Canada, news of these lands was unknown to other [[Europe]]ans. The [[Eurasia]]n and [[Africa]]n continents were the only land masses known to Western civilization throughout [[Medieval]] times and into the [[Renaissance]]. Even the true [[circumference]] of the [[Earth]] was not clearly known.  

Expeditions by [[Columbus]], [[Balboa]] and others led to the discovery of the [[Americas]] and the remnants of the Aztec and Mayan civilizations.  

Expeditions by [[Columbus]], [[Balboa]] and others led to the discovery of the [[Americas]] and the remnants of the Aztec and Mayan civilizations.