Bro...

Things exist even if labels don't...

"Parenting" exists across most animals, and humans have been doing it since the first human.

They just didn't say "parenting" in book titles...

On July 14th, 1946, at the dawn of the post-World War II baby boom, Dr. Benjamin Spock published The Common Sense Book of Baby and Child Care. It would become a foundational work on the topic of parenting, transforming how generations of children were raised.

The book, which has sold more than 50 million copies and been translated into more than 50 languages, stands as one of the best-selling nonfiction works of the 20th century. A culmination of more than 20 years of scholarship—and written over seven years with his wife Jane—the book debuted a revolutionary approach to child-rearing, all delivered in a warm, congenial tone.

https://www.history.com/this-day-in-history/July-14/dr-spock-baby-and-child-care-book

But the topic was widely discussed prior to that.

Spock just started using studies to justify parenting styles rather than ancedotal advice.

But obviously the studies had to come before his book.