Final answer:
Columba was an Irish missionary who preached the gospel in various locations. Catholic and Protestant missionaries played a crucial role in spreading Christianity and colonization.
Step-by-step explanation:
Columba was an Irish missionary devoted to the preaching of the gospel in various locations around the world.
During the time of Christopher Columbus, Catholic countries like Portugal, Spain, and France sent missionaries to West Africa and the Americas to spread Catholicism and convert the indigenous populations. Furthermore, missionaries from different religious denominations, including Catholics and Protestants, played a significant role in the colonization of new territories and the spread of Christianity.