About
9+10=21 is the wrong answer to a math problem that was posted on Vine and quickly became a fad within the Vine community, later spreading to various other internet communities.
Origin
The first Vine was uploaded around July 2014 by an unknown Viner. The content of the Vine features a man talking to a little boy saying he’s stupid. The boy replies that he isn’t, then the man asks him “what’s 9+10?”, and the kid answers “21”. The man then reaffirms his statement by saying “you stupid.”
Although the original Vine was lost, the video was uploaded to YouTube on July 7th, 2014, by Alondra Morelos[1] (seen below), and then again on July 9th by YouTuber Shadow Subscribe.[2]
By December 14, 2014, Morelos’ upload had received 5.7 million views and 37,000 likes, and Shadow’s upload had received 3.7 million views and 28,000 likes.
Spread
The original vine was then re-uploaded to vine by Ridiculous Vines on August 17, 2014,[3] (seen below) after the original was lost. As of December 2014, the vine has gained 3.38 million loops, 79.8 thousand likes, and 66.6 thousand revines.
Later, on August 29th, YouTube user SwiftStar352 uploaded[4] a song featuring audio from the vine (seen below). The song reached 14.6 million views and 108,000 likes by December 2014.
The Vine then went viral and by September became the subject of multiple parodies and other vine recreations.
Notable Examples
Other Vines
Other Videos
Images
Search Interest
External References
[1]YouTube – You stupid vine
[2]YouTube – 9 + 10 Vine
[3]Vine – Ridiculous Vines – What’s 9+10?
[4]YouTube – 9 +10 =21 Song