What are the jacobian and Caroline age in literary terms?

There are no specific literary terms for the ages of Jacob and Caroline. The terms "Jacob" and "Caroline" are common names, and the age of a character would be described using standard age descriptors, such as:

* Young: For a character in their early teens or twenties.

* Middle-aged: For a character in their thirties, forties, or fifties.

* Elderly: For a character in their sixties or older.

Example:

* "Jacob was a young man, barely twenty years old."

* "Caroline was a middle-aged woman, with a lifetime of experiences behind her."

You could also use more specific age ranges if needed, such as "in their late twenties" or "in their early sixties."

Ultimately, the age of a character is not defined by any specific literary term, but rather by the context of the story and how the author chooses to describe them.