CHICAGO  - Could the word for mother prove that Turkey was the birthplace of hundreds of languages as diverse as Hindi, Russian, Dutch, Albanian, Italian and English? Researchers using a complex computer model originally designed to map epidemics have traced the evolution of the Indo-European language family to find an answer in a study published Tuesday in the journal Science. Similarities between hundreds of languages spoken from Iceland to India have led to hot debates over where they originated and what their spread and evolution can tell us about early humans. The dominant theory is that the languages now spoken by some three billion people came from Bronze Age nomads.