The language spoken most often in Azerbaijan and Farsi (the language spoken in Iran) are considered to the origin of Indo-European languages. However, the Indo-European languages are considered to be a family of several hundred languages and dialects which are all related. There are said to be around 445 Indo-European languages with 313 of them part of the Indo-Iranian branch alone.
It was beneficial to settlers because they got all this new land to settle on and harmful because they were being made to walk and were being killed on the way there and they were confined to small areas.... hope this helps
A. Freedom. toward the end of the revolution, The British became worrisome about their victory they hoped to gain, and needed the slaves to help them.