A grand ceremony on December 7 marked the reopening of the Notre-Dame Cathedral in Paris after a devastating fire in 2019. Technology played a crucial role in the restoration of the 12th-century cathedral.
The French government started the restoration in September 2019, with archaeologists, historians, anthropologists, physicists, chemists, engineers and computer scientists worldwide contributing their knowledge and skills.
A virtual avatar of the Notre-Dame has been developed. It is a 3D digital system that collects data and information related to the cathedral, laying a foundation for subsequent restoration projects.
To restore and maintain the original acoustics of Notre-Dame, scientists collected acoustic models of the cathedral after the fire, and compared them with geometric acoustic models from 2015. Accordingly, they suggested what kinds of materials to choose for the restoration.
The work was not only a top priority in France, but also received global support and donations. China was the first country to reach an intergovernmental agreement with France on the restoration of the iconic cathedral.
The cultural heritage management authorities of China and France exchanged letters to discuss how they could cooperate.
In November 2019, China and France issued a joint statement on cooperation in the field of cultural heritage, including Notre-Dame and China's legendary Terracotta Warriors and Horses, described as the "most significant archaeological excavations of the 20th century."
In April 2023, a joint statement by the two countries reiterated the commitment to strengthening bilateral cooperation in the protection, restoration and development of cultural heritage.
In February, Zhou Ping, deputy director of the Qin Shi Huang Mausoleum Museum, and Chen Weichang, deputy director of the Grotto Stone Carvings Institute of the Chinese Academy of Cultural Heritage, participated in the Notre-Dame restoration work.
In May, China and France reached an agreement to jointly carry out research on the protection of wooden remains and earthen archaeological sites, specifically preserving and restoring fire-damaged wood at Notre-Dame.
Today, the revitalized cathedral is not only an important symbol of European culture, but also an important bond of friendship between China and France.