Emmaus is a town mentioned in the Gospel of Luke from the New Testament. Luke reports that Jesus appeared, after his death and resurrection, before two of his disciples while they were walking on the road to Emmaua. We only know Emmaua was connected by a road with Jerusalem.
The Rashidun Caliphate (Arabic: الخلافة الراشدية al-khilafat ar-Rāshidīyah), comprising the first four caliphs in Islam's history, was founded after Muhammad's death in 632, Year 10 A.H.. At its height, the Caliphate extended from the Arabian Peninsula, to the Levant, Caucasus and North Africa in the west, to the Iranian highlands and Central Asia in the east. It was the largest empire in history up until that time. It is also known as the Patriarchal Caliphate.