Gregorian calendarThe Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years differently so as to make the average calendar year 365.2425 days long, more closely approximating the 365.2422-day 'tropical' or 'solar' year that is determined by the Earth's revolution around the Sun.
Satavahana dynastyThe Satavahanas (Sādavāhana or Sātavāhana, IAST: ), also referred to as the Andhras in the Puranas, were an ancient Indian dynasty based in the Deccan region. Most modern scholars believe that the Satavahana rule began in the late second century BCE and lasted until the early third century CE, although some assign the beginning of their rule to as early as the 3rd century BCE based on the Puranas, but uncorroborated by archaeological evidence. The Satavahana kingdom mainly comprised the present-day Andhra Pradesh, Telangana, and Maharashtra.
UjjainUjjain (u:ˈdʒeɪn, Hindustani pronunciation: [ʊd͡ːʒɛːn], old name Avantika) is a city in Ujjain district of the Indian state of Madhya Pradesh. It is the fifth-largest city in Madhya Pradesh by population and is the administrative centre of Ujjain district and Ujjain division. It is one of the Hindu pilgrimage centres of Sapta Puri famous for the Kumbh Mela held there every 12 years. The famous temple of Mahakaleshwar Jyotirlinga is located in the center of the city.
Gupta EmpireThe Gupta Empire was an ancient Indian empire which existed from the early 4th century CE to early 6th century CE. At its zenith, from approximately 319 to 467 CE, it covered much of the Indian subcontinent. This period is considered as the Golden Age of India by historians. The ruling dynasty of the empire was founded by Gupta, and the most notable rulers of the dynasty were Chandragupta I, Samudragupta, Chandragupta II and Skandagupta.
List of calendarsThis is a list of calendars. Included are historical calendars as well as proposed ones. Historical calendars are often grouped into larger categories by cultural sphere or historical period; thus O'Neil (1976) distinguishes the groupings Egyptian calendars (Ancient Egypt), Babylonian calendars (Ancient Mesopotamia), Indian calendars (Hindu and Buddhist traditions of the Indian subcontinent), Chinese calendars and Mesoamerican calendars. These are not specific calendars but series of historical calendars undergoing reforms or regional diversification.
CalendarA calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years. A date is the designation of a single and specific day within such a system. A calendar is also a physical record (often paper) of such a system. A calendar can also mean a list of planned events, such as a court calendar or a partly or fully chronological list of documents, such as a calendar of wills. Periods in a calendar (such as years and months) are usually, though not necessarily, synchronized with the cycle of the sun or the moon.
