Each of the 103 languages, with its cognate sets, temporal and geographical range, constituted one leaf of the Indo-European family tree. The tricky part was filling in the branches.

The Indo-Iranian Journal (IIJ), founded in 1957, is a peer-reviewed journal that focuses on the ancient and medieval languages and cultures of South Asia and of pre-Islamic Iran. It publishes articles ...

The Indo-Iranian Journal (IIJ), founded in 1957, is a peer-reviewed journal that focuses on the ancient and medieval languages and cultures of South Asia and of pre-Islamic Iran. It publishes articles ...

The first words of Indo-European languages may have been spoken around 8,000 years ago in what is now Turkey. Researchers from New Zealand traced the family tree of 87 tongues including English ...