“Hunter-gathers” would “find caves” to stay in. Hunter-gathers (in search of food to eat) moved from location-to-locations. “Gardener-herders” would “build huts” to stay in. Gardener-herders on farmland raised “crops” & “livestock” to eat; and, did not move around.
Jean Bottera, “The Oldest Cuisine in the World“, 2011 was the topic of an earlier blog post. In this post I noted the “Yale Culinary Tablets” of 1730 BC is the oldest cookbook in written history.
Hugo Gernsback (1911), “all monetary systems of the past or present are based on one principle – the exchange of one thing for another. At first it was simply bartering or swapping such things as a goat for a pig”.
This quote is to show that money is nothing but a social covenant. The first money was exchanged farm products (livestock & crops). Paper money of today, is using banknotes to facilitate the exchange of things when farmers bring items to markets.