2025-03-01 UTC
# 
[artlung] It looks like the Oxford English Dictionary has a great entry, but it is (irony!) walled off. I tried to use my San Diego Public Library account but (argghhh) it errors out. https://www.oed.com/dictionary/walled-garden_n - but the term is 400-ish years old. I think I recall people talking about AOL and before that CompuServe in the 1990s though. Pre-internet even.