Multikey 1811 [patched] Today
Historically, there are records of "bank checks" or "tontines" requiring multiple signatures for large payouts. The Exchequer in London required multiple clerks to hold different tallies or seals. These were not cryptographic keys in the digital sense, but they were physical tokens of authorization—analogous to multikey principles. Thus, "Multikey 1811" can be interpreted as the point in history when institutional memory began shifting from single-lock security to distributed, redundant authentication.
