Most Unitarians would be surprised to learn that the first established Unitarian Churches were in Hungary, established mostly among the Szekely Hungarian population, a people with a long history of religious freedom and communitarian socio-economic relations. Indeed, that surprise comes from little knowledge of the history of Eastern Europe, at least during the first millennium of the Christian Era. Yet, the understanding of the roots and development of Unitarianism has much to do with that history, and with the Szekely people's religious flowering during the last four decades of the 16th...