Columns mark election years. Each continuous block represents one department across its lifetime.
Hover for a subtle highlight. Click to trace that department’s succession path within its institutional lineage; click again or press Escape to clear.
Tags filter areas of responsibility. A tag may apply to only part of a department’s history.
Use Ctrl + scroll over the timeline, Ctrl + / −, or the zoom buttons. Fit shows all rows. Drag empty space or use Shift + scroll to move through time.
Coverage ends in 2025. Links to organisations outside the dataset are retained in the data but are not drawn.