The origin of the dollar sign has had several different theories. Some are certainly wrong, such as the explanation given in Ayn Rand's Atlas Shrugged, The overlap of US became the dollar sign. The dollar sign was in use before the creation of the United States.

The most historically supported explanation is that the dollar sign originated from the marking "ps", which was used to label Spanish / Mexican pesos. Eventually, the p and s overlapped and became the dollar sign.

No comments: