I believe its 1869
fun fact on the inventions timeline coca-cola was intruduced 8 May 1886 :P
I believe it's A.
The Muslims did control Jerusalem for a time, and I believe that they forced the Christians out of it.
Also the Crusaders did sack Constantinople when they were not allowed in by the government there.
I don't know what D is but I'll assume that it is true because I think A is false.
Monastic communities were centrally important to the revival of learning during Charlemagne's reign.
Hope this helps:D Please vote Brainliest!
Religious thinkers began to question the authority of the Roman Catholic Church.
