[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) › c5.7 # Book of Indian Eras, with Tables for Calculating Indian Dates c5.7 Book of Indian Eras, with Tables for Calculating Indian Dates c5.7 - **Language:** English ### [c5.7](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c5.7) Dr. Max Müller also notes that, "In the hymns of the Yajur Veda the 13th month is changed already into a deity. Oblations are offered (Vâjasan Sanhitâ, vii, 31) to each of the twelve months, and at the end one oblation is made to Anhasaspati, the deity of the intercalary month. In the Brâhmanas likewise the thirteenth month is mentioned, and in the Jyotisha the theory of intercalation is fully explained." It seems certain therefore that the intercalary month was well known as early as the Vedic Period. - [Previous: c5.6](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c5.6) - [Next: c5.8](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c5.8) - [Up: c5](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c5) ## Linked texts (1) - [Vājasaneyisaṃhitā](https://indike.org/pramana/in.veda.samhita.suklayajur*vajasaneyi.7.31) — Sanskrit --- Source: [https://indike.org/pramana/ins.epigraphy.cunningham-1883.c5.7](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c5.7) · Pramāṇa