11.   Since the Muslim calendar is lunar, months are unrelated to the seasons of the sun, and years are shorter than in solar calendars.

12.   The anniversary is Tuesday according to the Muslim calendar.

13.   Throughout Afghanistan, this festive time in the Muslim calendar has been overshadowed by fighting between the Taliban and opposition troops backed by U.S. airstrikes and ground forces.

14.   Today is the anniversary according to the Muslim calendar.

15.   According to the Muslim lunar calendar, Eid al-Fitr begins the morning after the sighting of the new moon ending the month of Ramadan.

16.   Ramadan is the ninth month of the Muslim calendar, and Muslims believe that it was then that God first revealed the Koran to the Prophet Muhammed.

17.   Ramadan, the ninth month of the Muslim calendar, is a special time of worship, Koran reading, charitable acts and individual reflection and purification.