Mosques
A mosque is a place of worship for followers of Islam. Muslims often refer to the mosque by its Arabic name, masjid.The word "mosque" in English refers to all types of buildings dedicated for Islamic worship, although there is a distinction in Arabic between the smaller, privately owned mosque and the larger, "collective" mosque, which has more community and social amenities.
The Islamic calendar
The Islamic calendar or Muslim calendar or Hijri calendar is a lunar calendar having 12 lunar months in a year of 354 or 355 days, used to date events in many Muslim countries (concurrently with the Gregorian calendar), and used by Muslims everywhere to determine the proper day on which to celebrate Islamic holy days and festivals.