In the past two thousand years, Catholic missionaries have taught in every part of the world except probably Antarctica.
Catholic missionaries traveled to regions of Latin America, Africa, Asia, and the Pacific Islands. Protestant missionaries focused on regions like Africa, Asia, the Pacific Islands, and the Americas. Missionary efforts were often influenced by colonial powers and the desire to spread Christianity globally.
This is a gross oversimplification, but then your question really isn't specific enough for anything else. Catholic missionaries preached the Gospel, and lived it. Catholic priests, brothers, and nuns went into many lands and accepted the culture for what it was, then then tried to find elements in it that would make sense to the Gospel, and preached from that. They also took care of the sick, built schools and hospitals, etc. Protestant missionaries give out the Bible, to this day, and try to fit the people that they are preaching to into their mold of what Christianity looks like to them "back home".
Religious settlements run by Catholic priests and friars are known as missions. These missions serve as centers for converting indigenous populations to Christianity, as well as providing education and social services. They were prominent in the colonization of the Americas, particularly by Spanish and Portuguese missionaries.
After the Reformation, Spanish missionaries played a significant role in reintroducing Catholicism to various regions, particularly in the Americas and parts of Asia. Notable areas included Mexico, the Philippines, and large parts of Central and South America, where they established missions and converted indigenous populations. Their efforts were part of Spain's broader colonial strategy, aiming to solidify Catholic influence and counter the spread of Protestantism.
The Pacific Ocean lies between Asia and the Americas.
The spread of Buddhism begins when Emperor Ashoka sent missionaries to India during the third century BC. This mission became a success and later on becoming the center of Buddhism.
Exchange of goods and ideas between the continents of Europe, Asia, Africa, and the Americas. A sought-after direct water route to Asia through the Americas.
Christopher Columbus never got to Asia he thought he was in Asia but he was in the Americas
North Americas Asia
Missionaries
The Silk Road