The historical origin of most of the departments may be traced to one of three sources: the great offices of an earlier time; the secretariat of state; and the more recent boards and commissions. Many of the former offices of state survive as honorary posts, or with duties connected solely with the royal household.[82:1] The only ones that are still in touch with public administration are those of the Lord High Chancellor, who has retained the greater part of his ancient authority; of the Lord High Treasurer, the transformations of whose office have already been mentioned; and of the Lord High Admiral, whose powers have also gone into commission, and are vested in the Admiralty Board. [Sidenote: The Secretariat of State.] The secretariat is an old institution, although the standing of its members has varied much at different times. There are now five secretaries of state, but their position is peculiar in this, that they all share, from a legal point of view, the same office; and except so far as statutes have conferred special authority upon one or another, each of them can perform the duties of all the rest. During the greater part of the eighteenth century there were two secretaries, one for the northern and the other for the southern department, the former having charge of the relations with the northern powers, the latter of those with the southern powers together with home and colonial affairs. A series of changes made at the end of the century resulted in an increase of the number of secretaries to three, and a redistribution of their work, so that one had charge of foreign relations, another of home affairs, and the third of war and the colonies. The Crimean War brought about in 1854 the separation of the colonial and war departments, with the creation of a fourth secretary of state; and, finally, the mutiny in India, and the consequent transfer of the direct government of that country to the Crown, caused the appointment of a fifth secretary of state to take charge of Indian affairs. [Sidenote: The Recent Boards and Commissions.] [Sidenote: Sham Boards.]