Editing Chandra (section)

==Zodiac and calendar==
Soma is the root of the word ''Somavara'' or [[Monday]] in the Hindu calendar.{{sfn|Dalal|2010a|p=89}} The word "Monday" in the Greco-Roman and other Indo-European calendars is also dedicated to the Moon.<ref>{{cite book|author=Lionel D. Barnett|title=Antiquities of India: An Account of the History and Culture of Ancient Hindustan|url=https://books.google.com/books?id=x40mwFwgK44C&pg=PA190 |year=1994|publisher=[[Asian Educational Services]]|isbn=978-81-206-0530-5 |pages=188–192 with footnotes}}</ref> Soma is part of the [[Navagraha]] in the Hindu zodiac system. The role and importance of the Navagraha developed over time with various influences. Deifying the moon and its astrological significance occurred as early as the [[Vedic period]] and was recorded in the [[Vedas]]. The earliest work of astrology recorded in India is the [[Vedanga Jyotisha]] which began to be compiled in the 14th century BCE. The moon and various [[Classical planet|classical planets]] were referenced in the [[Atharvaveda]] around 1000 BCE.

The Navagraha was furthered by additional contributions from [[Western Asia]], including [[Zoroastrian calendar|Zoroastrian]] and [[Hellenistic astrology|Hellenistic]] influences. The [[Yavanajataka]], or 'Science of the [[Yavana|Yavanas]]', was written by the [[Indo-Greek Kingdom|Indo-Greek]] named "[[Yavanesvara]]" ("Lord of the Greeks") under the rule of the [[Western Kshatrapa]] king [[Rudrakarman I]]. The Navagraha would further develop and culminate in the [[Shaka era]] with the [[Saka]], or Scythian, people. Additionally the contributions by the Saka people would be the basis of the [[Indian national calendar]], which is also called the Saka calendar.

The [[Hindu calendar]] is a [[lunisolar calendar]] which records both lunar and solar cycles. Like the Navagraha, it was developed with the successive contributions of various works.