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The cluster includes all the forms of the country.
Select an element in the statistic to see additional information...
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Time series of the succession cluster's area per year (The metric always uses January 1st of each year). Changes between polities that are part of the same succession cluster, are not taken in account.
Cluster is a categorization that includes all iterations of a nation and all the possessions of this nation. Example: the cluster spain includes the iterations of that nation, like the Kingdom of Spain and the First Spanish Republic, whereas possessions of spain include Spanish America and the Spanish Philippines. Succession clusters do only include all the iteration of a nation without its possessions (colonies, protectorates, etc).
You can apply a filter (from a specific year to another) to narrow the time range. Clicking on a point in the graph will provide further information.
Based on the overall Phersu Atlas Model and its comprehensive sources.