So don't think we're being vague just because we're making this up as we go along. What we unearthed was a detailed account of the discovery that cheese comes from milk. Cheese of course has been around for millenia, but for many centuries no one knew where it came from. If you think about it, there is no obvious reason to suspect that cheese comes from milk. Cheese is usually a solid.
Milk is white.
Cheese can be almost any colour. Milk gives you a moustache instantly. Cheese takes years to give the same effect. My son, for example, started eating cheese at a very early age, but it wasn't until many years later that he grow a moustache. Given this, it should be no surprise that it took humanity a long time to work out the exact origins of cheese.