Coins from a kingdom on this body of water were found on Marchinbar island. An “accidental crusade” targeted a kingdom on the coast of this body of water later invaded by Butua. (-5[1])A ruler of (10[1])another state on this body of water built the Husuni (10[1])Kubwa (10[2])and added (10[2])a coral dome to a Great (10[1])Mosque (10[4])in its capital. (10[1]-5[2])That state’s (10[1])“chronicle” describes its founding by the (-5[1])son of a ruler of Shiraz. (10[2]-5[4])Gold (10[1])mined (10[1]-5[2])from the (10[1])interior (-5[2])highlands (10[1]-5[4])were brought (-5[2])to this body (-5[1])of water (-5[2])at the port city (10[1])of (10[1])Sofala, (10[1]-5[4])which (10[1])paid (-5[2])tribute (10[2])to the Mutapa (10[2]-5[2])Empire (10[1]-5[1])while controlled (10[1])by (10[1])the (10[1])Kilwa Sultanate. (10[10])The (10[2])Portuguese (10[1]-5[1])stronghold (10[1])at Fort Jesus (10[1])was besieged by Omani forces near Mombasa on this (10[1])body (10[2]-5[1])of (10[1])water. (10[6]-5[5])For 10 points, (10[1])the Swahili (10[1])coast in (10[1])East Africa (10[3]0[1]-5[1])formed the western boundary of (10[1])what (10[1]-5[1])ocean? (10[4])■END■ (10[33]0[3])