Before revision: Before the arrival of Europeans in the late 15th and early 16th centuries, the region was home to many indigenous peoples, a number of which had advanced civilizations, most notably from South ; the Olmec, Maya, Muisca and Inca.
After revision: Before the arrival of Europeans in the late 15th and early 16th centuries, the region was home to many indigenous peoples, a number of which had advanced civilizations, most notably from South : the Olmec, Maya, Muisca and Inca.