“Dávid Ferenc” (@unitariandavidferenc) posted this earlier today (6 January 2021) on Facebook:

On this day, January 6, in 1568 king John Sigismund assembled a Diet to be held in the town Torda (today Turda in Romania). At this Diet our Bishop Francis David inspired the delegates to later approve the first toleration edict of freedom of faith among the Christian religions.

This was a new and revolutionary idea of freedom of religion at that time, and therefore January 6 1568 also is considered by tradition to be the birth of The Unitarian Church.

Here’s the famous painting by Aladár Körösfői-Kriesch showing Bishop Francis David at the Diet of Torda. A painting well known by Unitarians.