Question: Why do we have different languages?

Marina De Vos answered on 12 Mar 2013:

When people live together, they adapt their language patterns over time, creating a language of their own. You probably will have noticed that new words become trendy and getting used more often. This makes a language evolve over time.
Most European languages belong to a group of language called the indo-european languages. When people moved from the India peninsula they brought their language and moved to different parts of what is now Europe. In time, each group evolved their own language. With migration, conquest languages were mingled creating new languages. English has for example elements of Germanic and Romanic languages in it.