The first page of the papal bull "Inter Gravissimas" by which Pope Gregory XIII introduced his calendar.
Bull by Pope Gregory XIII
device for bringing something into general compliance or use.
having to do with the Christian denomination with the Pope as its leader.
having to do with the ordinary life of a citizen, as differentiated from military, legal, or church-related concerns.
unit made up of governments or groups in different countries, usually for a specific purpose.
owner of an area of land where others occupy space and pay rent.
important or impressive.
empire that dominated Mesopotamia from about 550 to 330 BCE. Most of the ancient Persian empire is in modern-day Iran.
leader of the Catholic Church.
payment for use of a piece of property for a certain amount of time, usually a month.
international organization that works for peace, security and cooperation.