About

9/10/21, or September 10th, 2//21 is a date prophesied by Twitter page @TwentyOneCount to be the day the child from the 9+10=21 meme will come and "decide your fate." The account has been counting down the days until 9/10/21 since January 2021.

Origin

On January 1st, 2021, iFunny^[14] user 20eggsseggs posted an image macro featuring a screenshot of the 21 Kid from the "9 + 10 = 21" meme with the text "9/10/21 mark the date" (shown below). A repost of this meme inspired Twitter page @twentyonecount to start counting down the days until the date.

The Twitter^[1] account @twentyonecount was opened in January 2021 in order to count down the days to September 10th, 2021, a sequence of numbers that coincides with the 9+10=21 meme, in which a young boy says "21" in a strange cadence when asked what nine plus 10 is (shown below). Their first tweet was on January 16th, 2021, and reads: "237 days until September 10th, 2021."

Spread

In January 2021, Twitter^[2] account @twentyonecount opened with the purpose of counting down the days until September 10th, 2021, the day when "9 + 10 really equals 21," according to their bio. The account's first tweet was posted on January 16th, and reads: "237 days until September 10th, 2021."

The page posted daily tweets counting down the days and grew a significant following in the eight months leading up to the date. On August 23rd, @twentyonecount posted, "When the day comes, on 9/10/21, he will decide your fate," along with a screenshot from the 9+10=21 video, gaining over 80,000 likes and 10,000 retweets in two weeks (shown below).

On September 7th, Instagram^[3] page @spoobydoo posted an image of a cityscape with the 9+10=21 child looming over it and the text "9/10/21 Judgement Day" at the bottom (shown below, left). The post gained over 46,000 likes in two days. On the same day, Instagram^[4] page @chronic.memesv2 posted an image macro of the child with text reading "3 days until 9/10/21," gaining over 30,000 likes in two days (shown below, right).

On September 9th, @twentyonecount's countdown tweet,^[5] made at 1:48 a.m. EST, gained over 51,000 likes and 7,500 retweets in eight hours. The post reads, "1 day until 9/10/21 Prepare…" By the same date, the account boasted over 98,000 followers.

At midnight on September 10th, @twentyonecount posted "TODAY IS 9/10/21" and a video edit featuring the 21 kid originally by Twitter and YouTuber^[6] @_Tax_Payer_, gaining over 110,000 likes and 32,000 retweets in under a day (shown below). TwentyOneCount also encouraged followers to spread the hashtag "#nineten21" on the day, which quickly hit Twitter's trending page.

A number of meme accounts celebrated the day by posting video edits and memes of the 21 kid video, many joking about a rapture on the day. For example, Instagram^[7] page @grandmas.butt posted a meme about the 21 kid manifesting in their room, gaining over 160,000 views in 11 hours (shown below).

Instagram^[8][9] users @salad.snake and @repostrandy also posted video tributes celebrating the day, gaining over 88,000 views and 151,000 views in under 11 hours respectively (shown below, left and right).

Many social media users changed their profile pictures to the 21 kid on the day. Twitter^[10] users also celebrated the occasion under the relevant hashtag, posting their favorite 21 kid memes (example shown below).

Twitter^[11] user @TOGSt52YT posted a meme showing the 21 kid over a map of North America with the caption "Current US timezone map #nineten21," gaining over 8,500 likes in under 10 hours (shown below, left). On the same day, Twitter^[12] user @kyssavindu posted a Neon Genesis Evangelion edit referencing the meme, gaining over 3,400 likes in a similar span of time (shown below, right).

Various Examples

Search Interest

External References