15-M, or the 'Indignados' movement, was a series of peaceful citizen protests and encampments that erupted in Spain, mostly in the sun square (la puerta del sol, Madrid) on May 15, 2011. It arose from widespread exhaustion with the 2008 economic crisis, corruption, and the two-party system, demanding greater 'real democracy' and public participation.

The mural, which occupies one of the building's exterior front walls, is the result of a collaborative process involving various student associations, doctoral students, faculty members, and the Dean of the Faculty, Esther del Campo.

Standing over twenty meters tall, the mural depicts different scenes of the indignados movement in the public squares during May 2011, as well as some of its most significant messages.

With this mural, the Faculty sought to pay tribute to one of the most massive and cross-cutting movements in Spanish politics in recent decades, whose spirit is essential to understanding the current political system. Furthermore, many of the faculty’s own students played an active role in organizing the movement.

The mural will be inaugurated during the third week of May, alongside a photographic exhibition by the collective Juventud Sin Futuro (Youth Without a Future).