Humanity has lost tens of thousands of languages, study reveals
At its historical peak, there may have been more than 75,000 languages, while today we speak only about 7,500, according to research from Yale University.
At its historical peak, there may have been more than 75,000 languages, while today we speak only about 7,500, according to research from Yale University.
Humanity today speaks about 7,500 different languages, with English, Mandarin, Hindi, Spanish, Arabic, and French among the most widespread when counting both native and non-native speakers. But this number is only a fraction of the linguistic diversity that once existed, according to new research reported by Azernews, citing Reuters.
Using mathematical models, along with anthropology, linguistics, and demography, researchers reconstructed the history of global linguistic diversity over roughly 12,000 years, from the end of the last ice age, the beginning of the Holocene. Their findings suggest that the number of languages peaked between the first millennium BC and the first millennium AD, when between 30,000 and more than 75,000 languages may have been spoken simultaneously.
Since then, linguistic diversity has dramatically declined. Scientists attribute much of this reduction to the replacement of smaller languages by more dominant ones, driven by the expansion of ancient empires and later by European colonialism.
Claire Bowern, a professor of linguistics and anthropology at Yale University and a co-leader of the study, told Reuters about the broader value of languages: "Languages are much more than communication systems. They preserve knowledge, memories, and cultural experiences of the communities that speak them."
Researchers emphasize that languages can also provide valuable clues about the past, such as where populations lived, what they ate, and how they understood the world around them.
Direct historical records of ancient languages are extremely scarce, so researchers could not simply count the languages of ancient societies. Instead, they developed simulation models based on known relationships among languages, populations, and social structures. Additionally, they analyzed data from 171 existing hunter-gatherer societies in Africa, South America, and Southeast Asia to estimate the size of ethnolinguistic communities near the beginning of the Holocene.
About 12,000 years ago, human populations were relatively small and scattered, mostly in mobile hunter-gatherer groups. Agriculture, permanent settlements, and more complex social structures were not yet widespread. Researchers estimate that these populations spoke between 4,500 and 6,200 languages. As the number of people and the complexity of societies increased, so did linguistic diversity, eventually reaching levels far higher than those in the modern world.
The development of language families accompanied the emergence of writing. The first written language appeared in Mesopotamia during the fourth millennium BC, where Sumerian was recorded in cuneiform, and writing later developed independently in Egypt, China, and Mesoamerica.
The study's findings, published in late July 2026, are a powerful reminder of the loss of cultural heritage and the importance of preserving languages that are now endangered, an issue that affects both large and small linguistic communities worldwide, including efforts to preserve minority languages and dialects on European soil.
