Colonial expeditions were journeys undertaken by European powers during the 15th to 19th centuries to explore, conquer, and establish control over new territories. These expeditions often aimed to expand empires, acquire resources, and spread Christianity. Notable countries involved included Spain, Portugal, Britain, and France. Explorers like Christopher Columbus and Ferdinand Magellan played significant roles in these ventures, leading to the discovery of new lands and the establishment of colonies. The expeditions often resulted in the displacement of indigenous populations and significant cultural exchanges, shaping the modern world in various ways.