Ism e Tareekh and Qata e Wafat: How Birth and Death Years were remembered in History

Ism-e- tareekh ( اسم تاریخ) was the name computed from the year of birth. There are numbers assigned to each letter of the alphabet. Sum of the numbers assigned to each letter of birth year name  evaluate to the birth year. See the computations of names of my father, uncles and phuppo by Syed Ikram Hyder Naqshbandi (father of my grandfather) written in 1930s. Typically they were made to evaluate to hijri years and then converted to Gregorian calendar year. Here it shows the names of Tufail Fatima, Syed Ahsan Hyder, Syed Luqman Hyder, Syed Osman Hyder, Syed Ramzan (Sultan) Hyder, and Syed Saeed Uddin Hyder. 

Similarly, year of death was often computed from the sum of numbers assigned to the letters of a verse. Typically four (قطعہ) verses were used by poets and was called قطعہ وفات. These verses and names were used to remember the year of death and year of birth.