Documents related to the assassination of President John F. Kennedy have been released following an order by President Donald Trump shortly after he took office. Previously, the documents were kept in a classified category.

The documents were posted on the website of the U.S. National Archives and Records Administration. Most of the National Archives’ collection of over 6 million pages of records, photographs, motion pictures, sound recordings and artefacts were already in the public domain.

Trump told reporters on Monday that his administration will be releasing 80,000 files, though it’s not clear how many of those are among the millions of pages of records that have already been made public.

Kennedy was killed on November 22, 1963, on a visit to Dallas. Police arrested 24-year-old Lee Harvey Oswald but he was killed two days later, during a jail transfer.

A year after the assassination, the Warren Commission concluded that Oswald acted alone and that there was no evidence of a conspiracy. But that didn’t quell a web of alternative theories over the decades.