[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Archaeology, epigraphy and coins](https://indike.org/pramana/ins.epigraphy) › [Book of Indian Eras, with Tables for Calculating Indian Dates](https://indike.org/pramana/ins.epigraphy.cunningham-1883) › c8.27 # Book of Indian Eras, with Tables for Calculating Indian Dates c8.27 Book of Indian Eras, with Tables for Calculating Indian Dates c8.27 - **Language:** English ### [c8.27](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.27) The only difficulty that I see about accepting the 12-year Jovian Cycle of Varâha for the five centuries which preceded him is the statement of Garga about the omission of Chaitra and Aswayuja, as if in his time they were the only years subject to retrenchment. But as Garga mentions that 172 of Jupiter's years were equal to 170 solar years, while Varâha makes them equal to 170 solar years, the two cycles are practically the same in other respects. It does not, however, follow that no other years were subject to omission because Chaitra and Aswayuja alone are mentioned. My impression is, that the same six months that are omitted by Varâha's rule were also subject to omission in Garga's time. But even admitting that Chaitra and Aswayuja were the only two years that were expunged from the time of Garga down to Varâha Mihira, I see no difficulty in adjusting the times of omission so as to make them the only expunged years. As Chaitra and Aswayuja are also omitted years in Varâha’s scheme, they will of course remain constant, as the average period of omission is in both cases the 86th year. If then we accept the year 310 A. D. in which Chaitra was omitted as common to both systems, we have only to take the Aswayujas and Chaitras which fall nearest to the 85-year periods, either those preceding (A) or those following them (B), and the result will be the same excepting only as regards the names of the other omitted years. This will be seen at once by the following arrangement of the names:— - [Previous: c8.26](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.26) - [Next: c8.28](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.28) - [Up: c8](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8) --- Source: [https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.27](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c8.27) · Pramāṇa