Sunlight soap : the record reign and record sale of the record soap / Lever Brothers Limited.
The pattern
This still sits in the public-domain pool. No pattern name yet.
Why it works
Lever aligned Sunlight sales volume with Queen Victoria's Diamond Jubilee, framing the soap's market dominance as an imperial achievement. Tying product adoption to national pride gave the brand unassailable cultural and commercial status.
Steal this when
Steal this when aligning business milestones or market leadership with major civic anniversaries to reinforce category authority.