The Stone Age started around 3.3 million years ago, and was a period of time before civilization, when humans only used stone, intead of metal. This article talks about what happened during the stone age, and what it is. This is a trusted source because it has a widely knowen publisher, and is used in many schools.
Architects say there are many different parts, or stages, in the development of culture and technology. This article taks about the main stages of human development in societies before civilization, especially the Stone Age, the Paleolithic period, and the Neolithic period. This is a trusted source because it is from Brittanica, an encyclopædia used by many schools all over the world.
Architects and historians say modern humans developed from primates, or apes. In the recent three or five million years, humans slowly changed in size and appearance because of changes in their environment. This website tells us about different parts of before civilization, and what life was like back then. This is a trusted source because my teacher gave it to me.
Around 300,000 years ago each species of humans lived in their own society. Hunter gatherer societies. They would have their own tools, they buried their dead and have their own cultures. What's most important in this case though is that they have their own language. This video talks about what life was like for humans before and after civilization. I trust this source because it was given to me by my teacher, and lists many contributers, which show it is reliable , since we can check to see if the authors are legitimate.