Just curious ....
How many Duolingo members are there and when did it all start?
I am just being curious but as one of the most successful language sites available (in my opnion) I am wondering how big the Duolingo community is? Are there any stats available eg how many learning each language, how many have completed the entire language tree etc.
According to Wikipedia ( http://en.wikipedia.org/wiki/Duolingo ), Duolingo exists since November 2011, as a private testing program, and was released to the public on 19/6/2012. I remember at that time, around june or july that I could see discussions, comments that they were 6-7 months old, as well as users with half complete or almost complete their skill tree, so I guess these were the beta testers. There are more than 300.000 registered users (again according to wikipedia).