Naval Biographical Database Seniority
	The formalisation of rank was a relatively late introduction, but even in the earlier years there was a requirement for a ‘pecking order' whether for half pay or employment as an Admiral.  It was not until the 1790s that the date of advancement or promotion ceased to be tied to a specific appointment.  This category will therefore take on a greater significance as I move forward in time. Entries take account of the distinction between the date of 'first commission'  and date of 'promotion', although there is naturally some 'blurring of the edges' - the sources are seldom entirely consistent. Likewise, a conscious decision has been made to maintain no direct link between rank/rate and appointment. © CHD 2004