The origins of International Architecture Day are not linked to the most auspicious moments in history. Following World War II, an International Meeting of Architects in London led to the establishment of the International Union of Architects (UIA). Decades later, during one of their sessions, UIA members decided to establish a professional day of observance for everyone in the field.

From 1985 onwards, World Architecture Day was observed annually on June 1st. However, in 1996, the UIA announced a change, designating the first Monday of the second month of autumn as the day of celebration. This year, International Architecture Day falls on October 5th, coinciding with World Habitat Day. This pairing is no coincidence, as the goals of both observances focus on improving living conditions and comfort in populated areas.

Traditionally, representatives from the worlds of construction and architecture gather at conferences to mark the occasion, discussing issues related to education and working conditions, creative ideas, and the implementation of new technologies.

But what is architecture, really?

Architecture is not merely what we build; it is what we leave behind.

We leave our traces in the landscape—houses, streets, squares, and cities—but also the evidence of how we understood humanity, time, and the place we inhabit. That is why architecture is not simply a matter of form and aesthetics; it is a responsibility toward space and the past.

Humans build, yet at the same time, they are shaped by the very space they create. In what we create, something of our time, our knowledge, our values, and our relationship with those who come after us remains. Perhaps the greatest value of architecture lies precisely in the responsibility we bear toward the space entrusted to us.

Architecture is a way to breathe new life into a space, while honoring the obligation not to strip away the very qualities that define its character. And what we create today will no longer be ours alone tomorrow.