Template:Decade in country category/doc

Purpose
Template:Decade in country category is intended to be used on decade in country categories (for example, Category:2000s in Canada or Category:1530s in England). It creates a "timeline" style table of links to categories for adjacent decades before or after it (see example below).

Parameters
The first three parameters indicate the country and its continent(s).
 * The first parameter is the country name as indicated in the category name (but without prefixes which are unwanted for sorting, these should be added to the 4th parameter).
 * The second parameter is the continent where the country is located.
 * The third parameter is optional: if a country is located in two continents (mainly for countries in Europe and Asia, like Russia or Turkey), then a second continent can be included here. The order of the two continents is not important. This third parameter can also be used with member states of the United Kingdom (use "United Kingdom"), the former Soviet Union ("Soviet Union"), or former Yugoslavia ("Yugoslavia").
 * The 4th parameter is used for sorting of countries which start with "The" (or other prefixes like "the Socialist Republic of "): this can be left empty for most countries.

Simple example
In most cases, only two parameters will be needed: the country and the continent.

When placed on the page Category:1860s in Japan:

""
 * displays the following:

Example using four parameters
When placed on the page Category:1950s in the Socialist Republic of Macedonia:

""
 * displays the following:

Fifth parameter for new name

 * An unnamed 5th parameter may be specified as a new country name to be used in generating some of the parent categories. For example, the following placed on the page Category:1920s in Siam generates the parents Category:Decades in Thailand rather than the non-existent, and Category:20th century in Thailand rather than :


 * Alternatively, the fifth parameter may be given the caption "newname" as used at Category:1950s in Spanish Guinea.
 * The related template Template:Year in country category also has a parameter "newnamestart", to indicate the first year in which the new name is used in categories; however, "newnamestart" has not been implemented in this decade template code, and therefore if specified has no effect.
 * Cases where the fifth parameter is specified are in the tracking category Category:Decade in country category with newname parameter.

Subtemplate

 * Decade in country category/core