At the First Council of Nicaea, which was the first ecumenical council of the Church, the disagreements arising from within the Church of Alexandria over the nature of the Son in his relationship to the Father was so called solved by making him part of a godhead, existing further of a God the Father and a God the Holy Spirit.
Also for the 14th of Nisan was decided to take the pagan celebration of Estra/Eostra as the mid year festival for fertility, instead of celebrating it in the first month of the year (Nisan) on the day Jeshua with his fellow Jews prepared for the remembrance of the Exodus from Egypt.
