3 ms·
I never knew the idea was as recent as 2009 - I had naively assumed that they had been around since forever. RIP - he made the world a better place.
by abawany 8y ago
I never knew the idea was as recent as 2009 - I had naively assumed that they had been around since forever. RIP - he made the world a better place.
- mikeryan 8y agoMyself as well. They’re all over Berkeley and I assumed they’d been here for some time when I moved here in 2010.
- newnewpdro 8y agoThe concept isn't that recent. I've encountered them in various forms throughout the years, but the popularity has ramped up in the last decade as paper books became increasingly obsolete.