Which famous muslim explorer traveled from northern africa across asia to china and back, stopping many places along the way?

What are the causes and effects of the spread of christianity

Brainliestttme : ) describe the event: increase in islamic extremism in the middle east

What practical concern lay behind the promotion of longitudinally planned churches in 17th-century rome? a) allowing the circulation of pilgrimsb) interior lighting of the navec) support for the heavy domed) accommodating parishioners