Bitcoin Richlist History?

[bitcoinwhoswho]

Does anyone know of a website that tracks the progression of bitcoin's richest addresses over time? Ie these addresses were the richest as of month x, these addresses were the richest as of month x+1 etc. I found such a website once but am unable to re-find. Hoping someone in the community might have a suggestion. Thanks!

[wenjun123]

I have never met such a site, nor in principle such a rating, but it would be very interesting to see it.