Explain the idea known as "nationalism" and how it played a role in the weakining of the austrian and russian empires

The Austrian and Russian empire were both suffering from the different nations within their empires. Because they both had smaller nations which were very proud and wanted to gain independence, this eventutally lead to a decline of both empires. 

During the paleolithic, hominins grouped together in small societies such as bands, and subsisted by gathering  plants  and fishing, hunting or scavenging wild  animals. the paleolithic is characterized by the use of knapped stone tools, although at the time humans also used  wood  and bone tools.