Scientists Discover Evidence of Early Human Innovation

Scientists discovered that early humans in East Africa had -- by about 320,000 years ago -- begun trading with distant groups, using color pigments and manufacturing more sophisticated tools than those of the Early Stone Age, tens of thousands of years earlier than previous evidence has shown in eastern Africa.

The third national meeting on Research, Development and Education of Persian Language and Literature

The world of education, language and literature have found a decisive place in learning, and many educational systems have trained all types of literacy, especially civilization, in a national language, and in other words, the national language is the key to teaching and learning in today's world .