Ever wonder who the 'first-timers' were? The ones who created the templates the rest of us follow?
Who thought of roasting coffee beans, grinding them and making a drink out of them? Who put together yeast and flour to make leavened bread? Who made milk into cheese? Who was the first to figure out how to get milk out of a cow?
For your examples, only one is not a legend, but obvious. Watching calves suckle, someone in prehistory figured out how to get the milk. We will never know who. Coffee goes back to ancient mid-eastern countries. There are only legends on who established the processes. Leavened bread was probable an accident. Mold and yeast spores are everywhere. Cheese was probably first formed accidentally when folks would carry milk in goat and sheep's stomachs. There is a substance in their stomachs, rennet, that curdles milk, thus forming a simple cheese. Rennet is still used today to make cheese.
Ancient people discovered and developed a lot of natural medicines and tonics beneficial for one's health. Was it chance expirimentation or intuitive thinking? Eg...
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