[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) › c13.13 # Book of Indian Eras, with Tables for Calculating Indian Dates c13.13 Book of Indian Eras, with Tables for Calculating Indian Dates c13.13 - **Language:** English ### [c13.13](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c13.13) These facts show most decisively that the Syro-Macedonian calendar of the Seleukidæ was luni-solar, and not solar, as is frequently stated.\* Thus James Prinsep, copying an article from the Companion to the Almanac for 1830, says :—"Their year was solar, and consisted of 365 days, with the addition of a day every fourth year." But the calendar of 365¼ days is the Julian calendar, which was not adopted in Syria until some time after the Christian era, when it had become a Roman province. - [Previous: c13.12](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c13.12) - [Next: c13.14](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c13.14) - [Up: c13](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c13) --- Source: [https://indike.org/pramana/ins.epigraphy.cunningham-1883.c13.13](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c13.13) · Pramāṇa