Leonardo da Vinci's iconic mural, 'The Last Supper,' located in the convent of Santa Maria delle Grazie in Milan, underwent an extensive restoration that spanned over two decades. Painted during the late 15th century, this masterpiece depicted the final meal of Jesus with his disciples, capturing a moment of profound emotional intensity and theological significance. Throughout its history, the mural faced substantial decay due to environmental factors, warfare, and poorly executed restorations. The initial application of tempera over oil led to severe deterioration, and subsequent repairs further obscured its brilliance.

The restoration process, initiated in the late 1970s and supported by multiple organizations and art historians, aimed to reverse these damages and restore 'The Last Supper' to its former glory. Experts utilized advanced technology and techniques, enabling them to analyze the original layers of paint and remove previous restorations. The culmination of this meticulous work was a grand unveiling, inviting the public to experience the vibrancy and details of da Vinci’s artistry that had been obscured or lost for centuries.

On its reopening in 1999, visitors were able to witness not only the beauty of the original artwork but also the dedication of those who worked tirelessly to restore it. The event was significant, celebrating the fruits of conservation efforts and rekindling interest in Renaissance art in a contemporary context. It highlighted the importance of maintaining cultural heritage for future generations.