I could notice a big spike on these two names' popularity in 1975, when both peaked.
Is there a reason behind this?
Chart:
https://www.behindthename.com/name/olivia/top/ireland?compare=Oliver&type=sample
“Dear optimist, pessimist, and realist – while you guys were busy arguing about the glass of wine, I drank it! Sincerely, the opportunist!”
-Lori Greiner