The current edition of the database includes a block 4-- for original temple dating, when it is known, and this block has only one field, the field 400, reporting this dating. This field is repeatable, because different temples could have been built in the place where the present church is built, belonging to different periods and dedicated to different deities.
The main thing to discuss is whether we need to keep this information separately or to add it to the block 1-- which could become block of original temple information and not only about dedicatee deities.
Since here, like in subfield ^s of field 300, there is information about centuries, see the correspondent paragraph about problems related with this kind of indications.
Reproduction of site contents, unless otherwise indicated, is allowed if you correctly quote the site and attribute the passage you quote to its author. For further information: info@giornopaganomemoria.it