The goal of this thesis on roman and greek reformers was to create a methodical summary of the most important constitutional reforms in ancient Rome and Greece. It is mostly focussed on the history of ancient Rome or Roman reformers, respectively. I call these reforms constitutional for their undoubted life-changing impact on the society as a whole - some of the reforms changed the ancient societies for the upcoming decades and even centuries, some changed them, as I believe, forever. For example a struggle between Lucius Cornelius Sulla and Gaius Marius had a far- reaching impact on Rome as too much of "unbreakable" rules were broken - which, of course, led to another and another heavy and unprecedented interventions which ultimately led t...