We home schooling moms often try to integrate subjects when practical. It can save time and increase mental links for better memory retention. Not every thing integrates easily, however. Like American Colonial History and Latin. Oh, sure, it comes out happily enough (for Mom, anyway) that boys studied Latin in school, and sometimes you come across mottoes and sayings in Latin, but it's not what you call integrated. Sometimes, though, the kids themselves come up with their own integrations.
Witness one young scholar's (my 11yo ds) integration of Latin and what he's learned from studying the 1700's:
"Mom, why did you pressgang me into studying Latin?"
There. Couldn't have done it better myself.