I would appreciate correction."when sutying the past, is most important famous or ordinary peolple?" History is formed not only by a large number of significant celebrities and events, but also every single human being have, in certain measure, an impact on that. Who are key to understand the History could be argued. I believe that we cannot forget population in that task. It is undeniably true that famous people may mean crucial milestones due to their importance. Most of them are linked to a paramount events, historical fact and discoveries. Therefore, knowing about them is important. To illustrate, it well-known that Einstein was a particular man who had a cognitive disorder called “Asperger Syndrome”. This led him to have different thoughts. As a result, he postulated “Law of Relativity”. If we had not known this, it would have been more difficult to understand such a prodigious discovery. Nevertheless, the population also provide us with major details to interpret society, economic and politic in a particular time. This is because predominantly celebrities do not reflect that reality. For instance, during the Roman Era low social class were slaves as a whole. Throughout this, we are aware that there were a hierarchy society where the leader was rich and powerful and the population vulnerable and poor . To sum up, there is no doubt that famous characters should be analysed when studying history. However, from my point of view, common people also provide significant details for a deep understanding on History.