[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) › c53.18 # Book of Indian Eras, with Tables for Calculating Indian Dates c53.18 Book of Indian Eras, with Tables for Calculating Indian Dates c53.18 - **Language:** English ### [c53.18](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c53.18) A favourite mode of recording Hijra dates is by the numerical values of the letters in some short phrase, or chronogram, descriptive of the event commemorated. This system is called \*Abjad\*, from the first four letters of the Hebrew alphabet, from which the scheme was borrowed, namely, \*a, b, j, d\*. The whole scheme is as follows:— - [Previous: c53.16](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c53.16) - [Next: c53.19](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c53.19) - [Up: c53](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c53) --- Source: [https://indike.org/pramana/ins.epigraphy.cunningham-1883.c53.18](https://indike.org/pramana/ins.epigraphy.cunningham-1883.c53.18) · Pramāṇa