Where was the “blockchain trilemma” first mentiond?

Hi frens,

I'm looking for the origianal reference and author of the "blockchain trilemma". It's consistently attributed to Vitalik, however, I'm struggling to verify exactly where he introduced it. My research so far points to the eth wiki's page on sharding: https://eth.wiki/sharding/Sharding-FAQs

Can someone decypher for me when this page was written and possibly who it was written by? If so, many thanks in advance!