Category:Eiei-year — used with year parameter(s) equals year in page title

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This category may be empty occasionally or even most of the time.

This is a tracking category.

It is used to build and maintain lists of pages—primarily for the sake of the lists themselves and their use in article and category maintenance. It is not part of the encyclopedia's categorization scheme.

More information:

This category is hidden on its member pages—unless the corresponding user preference (Appearance → Show hidden categories) is set.
These categories are used to track, build and organize lists of pages needing "attention en masse" (for example, pages using deprecated syntax), or that may need to be edited at someone's earliest convenience.
These categories also serve to aggregate members of several lists or sub-categories into a larger, more efficient list (discriminated by classifications).
Typically, tracking categories are automatically populated by templates invoked in pages or by the MediaWiki software (see Special:TrackingCategories for an overview of the latter).

Administrators: Please do not delete this category as empty!
This category may be empty occasionally or even most of the time.

Tracking categories for Template:Eiei-year (edit | talk | history | links | watch | logs)

Category:Eiei-year — used on page without a year in the page title (population 0)
Category:Eiei-year — used with year parameter(s) equals year in page title (population 0)
Category:Eiei-year — used with year parameter(s) ≠ year in page title (population 0)

Purge this page to update those totals.

Explanation

Most of the category-by-year header templates are designed to be used on pages where the year is part of the page title. In nearly all cases, the year does not need to be supplied as a parameter, because it can be grabbed from the title using .

If all uses of a template are on pages which do have a year in the title which matches the year parameters, then the by-year parameters are redundant, and the template can be rewritten to remove them.

This system tracks the exceptions, if any.

See also

Category:Templates using YearParamUsageCheck templates which use {{YearParamUsageCheck}} to track the use of year parameters.

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