The oldest Irish records of the ritual indicate that Royal Arch Chapters originally administered three degrees. The first was based on the refurbishment of the first temple by King Josiah. The second was a short bridge to the third, which was based on the rebuilding of the temple after the exile. Most jurisdictions base the modern Royal Arch ritual on the post-exilic legend. In 1864, the Grand Chapter of Ireland decided to base their ritual on the reign of Josiah, the main practical difference being the names of the officers.