favorite example of meetings where history only knows the conditions prior to the meeting and the deal made at that meetin

[jacob ningen]

So Ive been obsessing over "the room where it happened" from Hamilton and was wondering if you could be a fly on the room to any "room where it happened" which would you choose
mine are
the Guayaquil conference of Bolivar and San Martin
The time as Lin puts it where "Two virginians and an immigrant walk into a room diametrically opposed foes. They leave having opened doors that were previously closed bros and here's the piece de resistance"