Complex sentence: In South America, especially in Peru, Argentina, Paraguay, Uruguay, Colombia, Bolivia, and Chile, and Mexico each country name the special bread differently, it is a tradition to eat it on the 6th of January each year.
Split into simpler sentences: In South America, especially in Peru, Argentina, Paraguay, Uruguay, Colombia, Bolivia, and Chile, and Mexico. In some countries, it is a tradition to eat it on the 6th of January each year.