Development of the banknote began in the Tang Dynasty during the 7th century, with local issues of paper currency, although true paper money did not appear until the 11th century, during the Song Dynasty.
A contract typically does not have to be notarized. A notary public (or simply notary) provides an acknowledgment that the signature appearing on the document is that of the person whose signature it purports to be. There is a requirement that some documents be notarized, such as a real property deed.
State law requirements for signing a valid a power of attorney for health care vary in several ways, but can generally be categorized into four groups: states that require the principal's signature to be notarized; states that do not require a notarized signature, but require one or two witnesses to sign the document; states that give the option of ...