5.1 Classifying Languages
About 100/6,000 languages are used by 5 million people.
Language Family
Common ancestoral language that existed long before recorded history are related to a collection of languages.
Language Branch
Common ancestoral language that existed several thousands of years ago are related through a collection of languages within a family.
Language Group
A collection of languages within a branch that share a common origin in the relatively recent past and display many similarities in grammar and vocabulary.