This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionTocharian languages.svg
English: The largest of the 36 Tarim oasis statelets listed in the Hanshu [Book of Han], plus areas in which the Tocharian languages were spoken. Areas of the squares are proportional to population.
Mallory, J.P.; Mair, Victor H. (2000), The Tarim Mummies: Ancient China and the Mystery of the Earliest Peoples from the West, London: Thames & Hudson, ISBN978-0-500-05101-6, pp 67, 68, 274.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.