It is believed that these groups migrated to the Caucasus in the 16th century.

Although they continued to be a majority until the mid 19th century, many other groups migrated to the area.

The group by then had migrated together to the living room.

Indigenous groups in these areas either became Chinese, retreated to the hill country, or migrated to the south.

Many different groups of European settlers migrated to the area by the late 18th century.

Exactly when the first group of people migrated into the Americas is the subject of much debate.

But if a substantial group of Napster users migrated to another service, that could change quickly.

Over the following many centuries, more ethnic groups migrated to the area.

Such exchanges would also be difficult in practical terms because many groups migrated between their summer and winter quarters.

Why did one group stay and the other group migrate?