This dating system was devised in 525 by Dionysius Exiguus of Scythia Minor, but was not widely used until after 800.
The Gregorian calendar is the most widely used calendar in the world today.
For decades, it has been the unofficial global standard, adopted in the pragmatic interests of international communication, transportation, and commercial integration, and recognized by international institutions such as the United Nations.
However, BC is placed after the year number (for example: AD 2017, but 68 BC), which also preserves syntactic order.
There is no need to pay separate renewal fee for the patent of addition during the term of the main patent and it expires along with the main patent.
Antebellum architecture is so intertwined with the memory of American slavery that many people believe that these buildings are not worth preserving.An application for patent filed in the Patent Office without claiming any priority of application made in a convention country or without any reference to any other application under process in the office is called an ordinary application.An ordinary application must be accompanied with a complete specification and claims.CHAPTER PATENTS ARRANGEMENT OF SECTIONS SECTION PRELIMINARY 1. (3) A complete specification shall— (a) fully describe the invention and the manner in which it is to be performed; (b) disclose the best method of performing the invention known to the applicant at the time when the specification is lodged at the Patent Office; and (c) end with a claim or claims defining the subject matter for which protection is claimed. (2) A provisional specification shall fairly describe the invention.