
According to the results of a study conducted by the British archaeologist from the University of Reading, Steven Mitten, the probable time in the prehistoric period when the ancestors of humans first began to speak is about 1.6 million years ago. And territorially it was eastern or southern Africa.
The scientist analyzed in detail the existing archaeological, paleoanatomical, genetic, neurological and linguistic materials that could shed light on the issue of speech of human ancestors. Mitten concluded that the birth of language took place from 2 to 1.5 million years ago.

Olduvai Gorge in Tanzania, which is believed to be one of the likely areas where people first began to speak
independent.co.uk
It is noted that it was during this period that the rapid development of the human brain was recorded. In particular, there was a reorganization of its internal structure, including the appearance of the frontal lobe area, which is associated with language production and understanding.
These changes, to which were added more advanced forms of upright walking, caused changes in the shape and location of the vocal tract, which made speech possible.

Homo erectus, who is believed to have developed the first rudimentary human language around 1.6 million years ago
independent.co.uk
According to researchers, language communication is one of the key factors that allowed people to survive in different ecological and climatic zones. The development of language began about 1.6 million years ago. In the future, it became complicated very slowly. And it became more refined approximately 150,000 years ago.
Source: independent.co.uk