I similar process I always enjoy reading and pointing out is the invention of ..... cheese

First it was a bunch of people who said ... "hey we drink mother's milk when we were babies right? ... why don't do the same thing with this cow? ... how about a goat? ... how about a horse?"

Then it went to ... "I don't want to drink it all right now ... let's just keep it all in this sack I made from a goat's stomach ... neat it works great ... now I have snack food for later"

Then .... "oh crap, all my milk has gone solid for some reason ... but I'm hungry ... let's try this white stuff and see what happens .... huh ... it didn't kill me or make me sick"

2,000 years later ... milk and cheese is a perfectly normal part of our human diet