The Moesi (Moesoi) were a Thracic tribe who inhabited part of what would become the Roman province of Moesia, which was named after them. Linguists speculate that the Moesi may have spoken a language or dialect intermediary between Dacian and Thracian. The Thracians were an Indo-European people, inhabitants of Thrace and adjacent lands (present-day Bulgaria, Romania, northeastern Greece, European Turkey and northwestern asiatic Turkey, eastern Serbia and parts of Republic of Macedonia). ... Roman or Romans has several meanings, primarily related to the Roman citizens, but also applicable to typography, math, and several geographic locations. ... In ancient geography, Moesia was a district inhabited by a Thracian people. ... Alternate meanings: see Dacia (disambiguation) Dacia, in ancient geography the land of the Daci or Getae, was a large district of Central Europe, bounded on the north by the Carpathians, on the south by the Danube, on the west by the Tisa (Tisza river, in Hungary), on the east by... The Thracians were an Indo-European people, inhabitants of Thrace and adjacent lands (present-day Bulgaria, Romania, northeastern Greece, European Turkey and northwestern asiatic Turkey, eastern Serbia and parts of Republic of Macedonia). ...
Also, I was trying to find out more information on the MOESI protocol, including state transition diagrams, but somehow all the information ended at MESI.
In case of the Illinois protocol, it would seem that the Flush isn't a proper flush (when going from Exclusive to Shared), but rather a broadcast so that the value may be picked up by the other interested caches.
The MOESI protocol was introduced in the paper, "A Class of Compatible Cache Consistency Protocols and their Support by the IEEE Futurebus," so that's probably the most definitive reference.