That's an interesting comment, thank you. Wikipedia says the divide is not ancient vs modern, but rather rural vs urban:

In urban societies, since ancient times, most men did work that earned money. They worked in workshops, banks, shops and other businesses as well as in churches, schools and the town council. It was seen as the job of a woman to be a "housewife" (homemaker).

But the reality was often different: often, if a family had a business, not only the husband but also the wife would work to make money in the business. This has been happening since ancient times.