
The Shaka era (
IAST
The International Alphabet of Sanskrit Transliteration (IAST) is a transliteration scheme that allows the lossless romanisation of Brahmic family, Indic scripts as employed by Sanskrit and related Indic languages. It is based on a scheme that ...
: Śaka, Śāka) is a historical Hindu
calendar era
A calendar era is the period of time elapsed since one '' epoch'' of a calendar and, if it exists, before the next one. For example, the current year is numbered in the Gregorian calendar, which numbers its years in the Western Christian era ...
(year numbering), the
epoch
In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. The "epoch" serves as a reference point from which time is measured.
The moment of epoch is usually decided b ...
(its year zero) of which corresponds to
Julian year 78.
The era has been widely used in different regions of the
Indian subcontinent
The Indian subcontinent is a physiographic region of Asia below the Himalayas which projects into the Indian Ocean between the Bay of Bengal to the east and the Arabian Sea to the west. It is now divided between Bangladesh, India, and Pakista ...
as well as in
Southeast Asia
Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...
. According to the
Government of India
The Government of India (ISO 15919, ISO: Bhārata Sarakāra, legally the Union Government or Union of India or the Central Government) is the national authority of the Republic of India, located in South Asia, consisting of States and union t ...
, it is referred as the Shalivahana Era (IAST: Śālivāhana).
History

The origin of the Shaka era is highly controversial. There are two Shaka era systems in scholarly use, one is called ''Old Shaka Era'', whose epoch is uncertain, probably sometime in the 1st millennium BCE because ancient Buddhist and Jaina
inscriptions and texts use it, but this is a subject of dispute among scholars. The other is called ''Saka Era of 78 CE'', or simply ''Saka Era'', a system that is common in epigraphic evidence from southern India. A parallel northern India system is the ''Vikrama Era'', which is used by the
Vikrami calendar linked to Vikramaditya.
The beginning of the Shaka era is now widely equated to the ascension of
Indo-Scythian king
Chashtana in 78 CE. His inscriptions, dated to the years 11 and 52, have been found at Andhau in
Kutch region. These years are interpreted as Shaka years 11 (89 CE) and 52 (130 CE). A previously more common view was that the beginning of the Shaka era corresponds to the ascension of
Kanishka I in 78 CE. However, the latest research by Henry Falk indicated that
Kanishka
Kanishka I, also known as Kanishka the Great, was an emperor of the Kushan dynasty, under whose reign (–150 CE) the empire reached its zenith. He is famous for his military, political, and spiritual achievements. A descendant of Kujula Kadp ...
ascended the throne in 127 CE. Moreover, Kanishka was not a Shaka, but a
Kushana ruler.
Other historical candidates have included rulers such as
Vima Kadphises,
Vonones, and
Nahapana.
According to historian
Dineshchandra Sircar, the historically inaccurate notion of "Shalivahana era" appears to be based on the victory of the
Satavahana ruler
Gautamiputra Satakarni over some Shaka (
Western Kshatrapa) kings. Sircar also suggested that the association of the northern king Vikramaditya with
Vikrama era might have led the southern scholars to fabricate a similar legend.
Another similar account claims that the emperor
Shalivahana, grandson of legendary emperor Vikramaditya defeated the Shakas in 78 CE, and the Shaka era marks the day of this conquest. This legend has been mentioned in the writings of
Brahmagupta
Brahmagupta ( – ) was an Indian Indian mathematics, mathematician and Indian astronomy, astronomer. He is the author of two early works on mathematics and astronomy: the ''Brāhmasphuṭasiddhānta'' (BSS, "correctly established Siddhanta, do ...
(7th century CE),
Al-Biruni (973–1048 CE), and others. However, it is an obvious fabrication. Over time, the word "Shaka" became generic, and came to be mean "an era"; the era thus came to be known as "Shalivahana Shaka".
Usage
The earliest known users of the era are the
Western Satraps, the
Shaka (
Indo-Scythian) rulers of
Ujjain. From the reign of
Rudrasimha I (178–197), they recorded the date of minting of their coins in the Shaka era, usually written on the obverse behind the king's head in
Brahmi numerals
Brahmi numerals are a numeral system attested in the Indian subcontinent from the 3rd century BCE. It is the direct graphic ancestor of the modern Hindu–Arabic numeral system. However, the Brahmi numeral system was conceptually distinct from ...
.
The use of the calendar era survived into the
Gupta period and became part of
Hindu
Hindus (; ; also known as Sanātanīs) are people who religiously adhere to Hinduism, also known by its endonym Sanātana Dharma. Jeffery D. Long (2007), A Vision for Hinduism, IB Tauris, , pp. 35–37 Historically, the term has also be ...
tradition following the
decline of Buddhism in the Indian subcontinent. It was in widespread use by the 6th to 7th centuries, e.g. in the works of
Varāhamihira and
Brahmagupta
Brahmagupta ( – ) was an Indian Indian mathematics, mathematician and Indian astronomy, astronomer. He is the author of two early works on mathematics and astronomy: the ''Brāhmasphuṭasiddhānta'' (BSS, "correctly established Siddhanta, do ...
, and by the 7th century also appears in epigraphy in
Hindu Southeast Asia.
The calendar era remained in use in India and Southeast Asia throughout the medieval period, the main alternative era in traditional Hindu timekeeping being the
Vikram Samvat era (56 BC). It was used by Javanese courts until 1633, when it was replaced by
Anno Javanico, a hybrid Javanese-Islamic system.
It continues to be used in the
Balinese saka calendar. It was adopted as the era of the
Indian national calendar (also known as "Śaka calendar") in 1957.
The Shaka epoch is the
vernal equinox of the year AD 78. The year of the official Shaka Calendar is tied to the
Gregorian date
The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian cale ...
of 22 March every year, except in Gregorian leap years when it starts on 21 March. The Lunisolar Shalivaahana Saka continues to be used widely in Southern and Western India for many religious and some secular purposes such as sowing and agriculture.
See also
*
Vikram Samvat
*
Indian national calendar
*
Gregorian calendar
The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian cale ...
References
Citations
Sources
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{{Calendars
Hindu calendar
Calendar eras