in many European countries the start of WW2 was accompanied by a substantial fertility increase. European baby boom started in 1940. Humans are weird.
undefined subscriptions will be displayed on your profile (edit)
Skip for now
For your security, we need to re-authenticate you.
Click the link we sent to , or click here to sign in.
in many European countries the start of WW2 was accompanied by a substantial fertility increase. European baby boom started in 1940. Humans are weird.