What does 囲み数字: 1 look like on Facebook?

On Facebook it is the design shipped in 16.0, shown above at full size. Older revisions are listed beneath it.

When did Facebook add 囲み数字: 1?

Facebook first drew 囲み数字: 1 in 1.0, released 2014年1月31日.

Meta Platforms, Inc. has shipped 13 versions of 囲み数字: 1. Each is dated, so you can see when the design changed.

Facebook 3.0

Facebook shipped a new design for 囲み数字: 1 in 3.0, released 2018年12月2日. The previous design is shown beside it.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does 囲み数字: 1 look like on Facebook?: On Facebook it is the design shipped in 16.0, shown above at full size. Older revisions are listed beneath it.
When did Facebook add 囲み数字: 1?: Facebook first drew 囲み数字: 1 in 1.0, released 2014年1月31日.
How many times has Facebook redrawn 囲み数字: 1?: Meta Platforms, Inc. has shipped 13 versions of 囲み数字: 1. Each is dated, so you can see when the design changed.