twelve centuries already, as well as a reflection of the importance of the city of Paris, whose local institutions and notaries produced millions of records over the centuries. In the end of 2020, the National Archives contained of physical records (the total length of occupied shelves put next to each other) and 74.75 terabytes (74,750 GB) of electronic archives, an enormous mass of documents growing every year (3.1 km of physical records and 4.7 terabytes of electronic archives entered the National Archives in 2020 despite the COVID-19 lockdowns). Due to the events of the French Revolution, the pre-French Revolution archives kept by the National Archives are not just the archives of the central state, but also the many local archives of the Paris region, such as all the archives of the abbeys surrounding Paris (e.g. the Royal Abbey of St Denis), the archives of the churches of Paris, and the archives of the medieval Paris city hall. Thus, the National Archives serve as the archives of the French central state for records from 1790 onwards, but for records before 1790 they serve as both the archives of the central state and the local archives of Paris and its region. The National Archives, however, do not keep the pre-1790 church records of Paris (baptisms, marriages and burials). These were kept at the municipal archives of Paris (original series from 16th century to French Revolution) and at the Palais de Justice (duplicate registers from 1700 to French Revolution), and were entirely destroyed by fires set by extremists at the end of the Paris Commune in May 1871 which destroyed both the municipal archives and a large part of the Palais de Justice. The oldest original record kept at the National Archives is a papyrus dated AD 625 coming from the archives of the Royal Abbey of St Denis seized at the time of the French Revolution. This papyrus is the confirmation by King Chlothar II of a grant of land in the city of Paris to the Royal Abbey of Saint-Denis previously made by the vir illustris Dagobert, son of Baddo. This charter is the oldest original one kept by the National Archives, but the National Archives possess medieval copies of earlier records from the 6th century (but not the originals). The National Archives also possess a small fragment of an original papyrus record from the year 619 or 620 (uncertain date),