Template:Event year header

Back-navigation header for an event's per-year write-up page (e.g. A Gathering Echo/2007). Drop it at the very top of the page:

{{Event year header}}

It auto-derives the parent event page and the year from the page title and renders a breadcrumb like:

‹ A Gathering Echo · 2007

Both parts can be overridden when the automatic split is wrong (for example an event whose own name contains a slash):

{{Event year header | event = Some Event | year = 2007 }}

Uses , so it works even though main-namespace subpages are disabled. Renders nothing on a page with no / in its title, so it is harmless on the main event page. Pairs with the auto-linking Year column from {{Past events}} / Module:Recurrence: the table links each year to its write-up, and this header links back.