What are classis?

Some articles on classis:

Christian Reformed Churches Of Australia - Structure
... a geographical area (typically on a state-basis) meet every three months as a classis ... The synod deals only with issues raised by a classis ... issues were originally raised by a session, brought to a classis, before coming to the synod ...
Classis Ravennas
... The classis Ravennas ("Fleet of Ravenna"), later awarded the honorifics praetoria and Pia Vindex, was the second most senior fleet of the imperial Roman Navy after ...
Classis Ravennas - History
... the Roman civil wars, but the permanent classis Ravennas was established by Caesar Augustus in 27 BC ... It was commanded by a praefectus classis, drawn from the highest ranks of the equestrian class, those earning more than 200,000 sesterces a year, and its mission was to control ... during the civil war of AD 69, suggests, together with the classis Misenensis, it formed the naval counterpart of the Praetorian Guard, a permanent naval force at the emperor's direct disposal ...
Classis Misenensis - History
... The classis Misenensis was founded by Caesar Augustus in 27 BC, when the fleet of Italy, until then based mostly at Ostia, was moved to the new harbour of ... It was commanded by a praefectus classis, drawn from the highest levels of the equestrian class, those earning more than 200,000 sesterces a year ... praetoria, awarded by Vespasian for its support during the civil war of AD 69, suggests, the classis Misenensis, together with the classis Ravennatis, formed the naval counterpart of the Praetorian Guard, a ...
Eureka Classis - Westminster Period 1953 To 1970
... The Eureka Classis had always been short on ministers ... Two of the leading ministers in the Eureka Classis, Rev ... enrolled at Westminster and the Eureka Classis began a fruitful relationship with the seminary ...