[Wikipedia-l] Disambiguation - Altering Entry Titles?

[Tesla Coil]

The Wikipedia entry for "Bloody Sunday" contains reference 
to "Bloody Sunday - Northern Ireland," 30 January 1972, but
not Ireland's earlier "Bloody Sunday" of 20 November 1920.

While true that "Bloody Sunday" of 1972 is distinguished by
having occurred in *Northern* Ireland, standard practice in
indexing books of Irish history is to distinguish by year.

Without alteration of titles, one ends with entries perhaps:

"Bloody Sunday - Northern Ireland"
"Bloody Sunday - Ireland - 1920"

Which seems less optimal toward disambiguation than:

"Bloody Sunday - Ireland - 1920"
"Bloody Sunday - Ireland - 1972"

So, I'm new here.  How does one resolve such circumstance?