Generate a correct and concise answer for the question based on the words in the context.

Context : The M-63 Plamen (English: Flame) is a 128mm multiple rocket launcher developed in 1963 in Yugoslavia for use in the Yugoslav People's Army. 
Question : What year was M-63 Plamen commissioned?
1963

Context : The Battle of Vescera (modern Biskra in Algeria) was fought in 682 or 683 between the Berbers of king Caecilius and their Byzantine allies from the Exarchate of Carthage against an Umayyad Arab army under Uqba ibn Nafi (the founder of Kairouan). 
Question : The point in time of Battle of Vescera was when?
682

Context : Anna Magdalena Bach (née Wilcke or Wilcken) (22 September 1701 -- 22 February 1760) was an accomplished singer and the second wife of Johann Sebastian Bach. 
Question : What is Anna Magdalena Bach's spouse's name?

Johann Sebastian Bach