Does any know of any time in history (besides Har Sinai) when this has happened? I would think that such a large gathering liklier in the State of Israel, but has the blessing been said?
[A separate question would be how you even count such an event. Besides the sheer mass, we can't count Jews to begin with (perhaps we would go through ticket stubs).]
I'd love to hear if anything of the sort has been organized.