The movement of large numbers of Christians from one place to another, as immigrants, pilgrims, monks, bishops and theologians, connected numerous local forms of Christianity across the Greek-speaking world. Churches and monasteries were built in urban and rural locations, to provide fixed points for the daily lives of Greek Christians. Of the numerous councils held circa 300-600, most were strictly regional or local. The majority were never recognised as ecumenical, though some could be regarded as trial runs in which significant positions and terms were aired. What should be remembered about the five councils in this era that eventually came to be recognised as ecumenical (Nicaea in 325; Constantinople in 381; Ephesus in 431; Chalcedon in 451; Constantinople in 553) is, first, that they were directly under the influence of emperors who wanted their wishes fulfilled. Second, the Christian leaders who attended these councils often wrangled at least as much over the ranking of their sees as over theological issues.