Not sure how often this would happen, but today the start of Operation CRUSADER and the day by which the anniversary of its most famous engagement, the second battle of Sidi Rezegh on Totensonntag (Sunday of the Dead), is known, fall on the same day. They originally were on 17 and 23 November 1941, respectively.

Below some links from this blog on the battle of Totensonntag 1941.

6 New Zealand Brigade on Totensonntag

Italian Armoured Division Ariete on Totensonntag