I decided to focus on the history of nomadism and the key challenge to its longevity: its relationship with the state. Nomadism has stood out in comparison to our settled lifestyle, but on its own terrain, calling its essence, motivations and problematics into question. My subject is linked to architecture through an analysis of the appropriation of space. How can we belong to the world without being attached to it? The personal and universal dimension of my subject holds that the nomadic soul, as I call it at the end of my dissertation, resonates differently with each one of us. The history of our Sapiens ancestors is the history of humanity that has ultimately reached us today, offering us the ability to examine our own history by stepping to one side.