Which event marked the beginning of significant English exploration and colonization in the Americas?

The defeat of the Spanish Armada in 1588 is recognized as a pivotal moment that opened the door for English exploration and colonization in the Americas. Before this event, Spain was the preeminent European power, dominating exploration and colonization efforts with its vast resources and military might. The defeat of the Spanish Armada weakened Spain's naval dominance and shifted the balance of power in Europe, allowing England to pursue its colonial ambitions more aggressively.

In the aftermath of the Armada's defeat, England emerged as a formidable naval power. This change in dynamics encouraged English explorers to venture into the Americas, leading to increased endeavors for colonization. Subsequently, this set the stage for significant English settlements, such as the founding of Jamestown in 1607, though it was not the initiating event for English activities in the region.

Other options represent key historical moments but did not directly mark the onset of English colonization. For instance, the Treaty of Tordesillas in 1494 primarily affected Spanish and Portuguese exploration. The Protestant Reformation, while significant in shaping European society and politics, mainly influenced religious dynamics rather than directly instigating exploration and colonization. Thus, the defeat of the Spanish Armada is considered the crucial event that significantly propelled English exploration and colon