1. Intorduction
Up till recently, the work on extracting temporal references from the Arabic documents was not satisfactory. The reason for this dissatisfaction was due to bad results in the stemming process. The stemming process as we know is the backbone of extracting temporal references. The recall of the stemmer was not reaching even 65% [8]. Since Arabic is the official language of over twenty Middle Eastern and African countries, it is not acceptable to extract temporal references with a low recall stemmer. Working on these topics will have a great effect on our society and education level because it will make the path to correct data shorter. It will also save time for researchers and students alike. In addition almost all the documents we work on or use are written in one date, while describing events which occurred on different dates. So perhaps the following question is in order: how to search for a specific document describing events happening on a specific date? This is what we need to do in extracting Gregorian dates and Hijri (Arabic) dates.