[Nifster]

Ah so you are letting us know what Roman theology is

[jobim]

Roman Catholic theology, or doctrine - not Roman.

I don't think it's a secret, as the Catholic Church has had catechisms all along:

The history of catechisms in the Catholic Church goes back to the very earliest days of
the Church. There is a document called the Didache, which sets out in a rather systematic
way the beliefs, practices, and moral imperatives of the early Christians. The Didache
dates from the end of the first century, and so, it is an extraordinarily ancient type of
catechetical document.

http://www.ewtn.com/library/CATECHSM/NCOFCC.HTM