15y ago yesterday vCard 2.1 http://www.imc.org/pdi/vcard-21.txt, 13y ago vCard 3, 7y ago hCard, 1mo ago vCard 4: microformats.org/wiki/vcard for the history of vCard specifications. A good example of the evolution of a shared semantic vocabulary in the open, over many years and iterations.
View
on Twitter