استفسار بخصوص 214 الاستماع 2

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السلام عليكم :$

طيب واللي بعده انا بعد مو فاهمته :(
part to trade and money

before the invention of money ,what were examoles of good and products that ancient socient societies that ancient societies traded




2-which is older ,accounting or money



ايش معنى هذا :)