There is no consensus on how the dollar sign came about. A number of researchers believe that when the Spaniards exported gold from the American colonies in cast bars, they put an S sign on them (after the initial letter of the country - Spain). After the ingots arrived in Spain, a vertical line was applied to them, and when sent to the colonies - another one.
Others argue that the path to the dollar sign was as follows: the word `peso` was shortened to the letter P, a small letter s was added to its upper right part - it indicated the plural. Gradually, they began to leave one vertical stick from P and wrote S.
There are opinions that the $ sign is nothing more than two Pillars of Hercules entwined with a ribbon - the Spanish coat of arms, symbolizing power and authority, as well as financial stability and steadfastness.
According to the most common version, it was in 1778 that American businessman Oliver Pollock first used this sign in his accounting books. He was a supplier to the American patriotic army during the war against the British oppressors, bought weapons from the Spaniards, traded in pesos and entered the proceeds in the ledgers with a sign that combined P and S. In this way, Pollock continued the established Spanish colonial tradition. Over time, this sign began to look like an S, crossed out by one or two vertical lines. Pollock provided his accounts to the American Congressman Robert Morris, who was the first to officially use such a dollar sign in documents. A few years later - in 1786 - the dollar became the national currency of the United States.