Sai Island is a tiny island in the Nile stretching just five kilometers across and 12 kilometers long, but it contains ruins spanning thousands of years and several empires. Though Sudan is now primarily an Islamic country, a medieval Christian empire known as Makuria flourished in Sudan between the 7th and 14th centuries. Despite the length of its existence, there are still many unanswered questions about Makuria and its people. Sai Island was once a bishop’s see (residence). The last remnants of the church of Sai Island can be seen…