@jgweed,
jgweed;162133 wrote:One might say that the decade surrounding WW2, for example, saw the use of technology and governmental organisation put to decidedly inhumane use: contemporaneous with the Holocaust was the use of fire-bombing and Stalin's extermination of millions of fellow Russians.
Perhaps we could stick all such things under an umbrella of an unprecedented application of industrial processes to kill people, which seems to have reached an apex in the mid-twentieth century?
Like Ken I also think the rise of science is an important, dramatic and perhaps much underrated watershed.
I really don't know what the world would have been like without the invention of music along Pythagorian tonal models. It always seems a bit of a shame to me that whenever a discussion of these "moments of high historical drama" comes up the scrutiny tends to be put upon religious, political or military upheaval. My life would have been undoubtably impoverished without tonal music - so I'd choose the development of that as exemplified by Pythagorus as a particular watershed moment worthy of acknowledgement.
With the added bonus that is was an upheaval with little tragedy attached, afaict.
Castrato and (insert name of least favourite artists/genres that are always in the radio here) aside, of course.