You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
The money-from-barter theory is *theoretically* accurate, it can and indeed (as with the POWs) has happened. But a barter market (a) presupposes an efficient market, far more rare in prehistory than bilateral monopolies & coercive transactions, and (b) as observed is unstable.
In other words,specialized monetary objects, e.g. necklaces of shells or monetary metals, generally came into use for fitness-critical wealth transfers (tribute, legal damages, marriage payments, etc.) millennia before they came into use as widespread media of retail exchange.
Credit barter of goods and services was probably much more usual, we still use it a lot. This is what Mengerian economist Carlos Bondone calls “irregular credit” where the good that cancels the debt is not specified, or its quantity, quality or due date.https://link.medium.com/SHBcvgM7xT
any time traveler worth his salt will have shells copper silver gold and digital currency
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
