Well, the Catholic church agrees with me that personal confession to a priest didn’t happen until the 7th Century. It even mentions the Irish part.
"During the seventh century Irish missionaries, inspired by the Eastern monastic tradition, took to continental Europe the ‘private’ practice of penance, which does not require public and prolonged completion of penitential works before reconciliation with the Church. From that time on, the sacrament has been performed in secret between penitent and priest. This new practice envisioned the possibility of repetition and so opened the way to a regular frequenting of this sacrament. It allowed the forgiveness of grave sins and venial sins to be integrated into one sacramental celebration. In its main lines this is the form of penance that the Church has practiced down to our day” (Catechism of the Catholic Church, paragraph 1447).
You leave out the beginning of the paragraph. The Church has always had priests and bishops, and it has always had oral confession and reconciliation. Who is that oral confession to? To Each other?
NO. I can’t forgive you your sins nor can you of my sins. Confession is to a priest or bishop who CAN forgive sins… As the CCC says,
The concrete form for confession has changed over the years, but the form has always been oral confession, and to a priest or bishop,
whether confession is public in the beginning, or later when it was private.
**
1447 **Over the centuries the concrete form in which the Church has exercised this power received from the Lord has varied considerably. During the first centuries the reconciliation of Christians who had committed particularly grave sins after their Baptism (for example, idolatry, murder, or adultery) was tied to a very rigorous discipline, according to which penitents had to do public penance for their sins, often for years, before receiving reconciliation. To this “order of penitents” (which concerned only certain grave sins), one was only rarely admitted and in certain regions only once in a lifetime. During the seventh century Irish missionaries, inspired by the Eastern monastic tradition, took to continental Europe the “private” practice of penance, which does not require public and prolonged completion of penitential works before reconciliation with the Church. From that time on, the sacrament has been performed in secret between penitent and priest. This new practice envisioned the possibility of repetition and so opened the way to a regular frequenting of this sacrament. It allowed the forgiveness of grave sins and venial sins to be integrated into one sacramental celebration. In its main lines this is the form of penance that the Church has practiced down to our day.
in extension
1448 Beneath the changes in discipline and celebration that this sacrament has undergone over the centuries, the same
fundamental structure is to be discerned. It comprises two equally essential elements: on the one hand, the acts of the man who undergoes conversion through the action of the Holy Spirit: namely, contrition, confession, and satisfaction; on the other, God’s action through the intervention of the Church. The Church, who through the bishop and his priests forgives sins in the name of Jesus Christ and determines the manner of satisfaction, also prays for the sinner and does penance with him. Thus the sinner is healed and re-established in ecclesial communion.