[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) › c23.7 # Book of Indian Eras, with Tables for Calculating Indian Dates c23.7 Book of Indian Eras, with Tables for Calculating Indian Dates c23.7 - **Language:** English ### [c23.7](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c23.7) To ascertain whether any particular year will be intercalary or not, it is only necessary to divide the number by 19, and if the remainder be either 2, 5, 7, 10, 13, 15, 18, then an intercalary month will be added in that year; but if it be any other number, the year will be an ordinary one. - [Previous: c23.6](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c23.6) - [Next: c23.8](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c23.8) - [Up: c23](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c23) --- Source: [https://indike.org/pramana/ins.epigraphy.cunningham-1883.c23.7](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c23.7) · Pramāṇa