Calendars exist for other months which make no such regulations for any days.
On the other hand, complete indentity of regulations and observance in Babylonia and Israel at one period need not show more than development on the same lines.
Further, as the country became more consolidated and the central government extended its authority over economic affairs, new regulations came into force, new organs of government appeared, which were sometimes in conflict, sometimes in harmony, with the existing system, and it becomes for a time far more difficult to obtain a clear view of the actual working of economic institutions.
There were also extra charges under contingent regulations of great complexity, which commonly added 50 per cent.
Under present regulations the term of liability is divided into nine years in the Active Army and Reserve (three or two years with the colors) four in the Mobile MilitIa and six in the Territorial Militia.