The destruction of irreplaceable historical record in the PRO explosion (and the 1921 burning of the Custom House) has impaired Irish historiography; some had been calendared to varying degrees. The National Archives of Ireland and Irish Manuscripts Commission have assembled and published original documents from other sources to mitigate the loss. A consortium led by Trinity College Dublin is creating the website "Beyond 2022" to provide a "virtual recreation" of the PRO and its contents, in time for the centenary of the explosion.