Westin claims to have been the first hotel chain to introduce guest credit cards (in 1946), 24-hour room service (1969), and personal voice mail in each room (1991).
Hadith, Arabic á¸¤adÄ«th (âNewsâ or âStoryâ), also spelled HadÄ«t , record of the traditions or sayings of the Prophet Muhammad, revered and received as a major source of religious law and moral guidance, second only to the authority of the QurÊ¾Än, the holy book of Islam.
It's the call to prayers. Secondly, the sunnis themselves have added to the adhan. They say assalat kheir um minannaum which if you look in the sahihs, is not mentioned when you look at the hadiths about the adhan. As to for when it started, it was added because of all the atrocities towards the shia.