I'd argue the cold war was closer to the 'hinge of history'. In fact on this very day 9/26 in 1983, a not very well known soviet lieutenant colonel prevented what would very likely have been all out atomic war. In the grand scheme of things, everything that happened this year is probably minor in comparison to Petrov's decision. https://en.wikipedia.org/wiki/1983_Soviet_nuclear_false_alar...
https://www.bbc.com/future/article/20200807-the-nuclear-mist...
>>As it happens, on this occasion there was no imposter – at least, not a human one. The figure skulking around the fence is thought to have been a large black bear. It was all a mistake. But back at Volk Field, the squadron was still unaware of this fact. They had been told there would be no practice runs, and as they boarded their planes, they were entirely convinced that this was it –World War Three had begun.