From IERUK:

Background information - the following is not an exhaustive list, it is just our understanding of the iterations of the flag up until this point in time. If we have made any omissions in information we welcome the opportunity to learn. Please know that the sole intention in making this iteration of the flag was to create intersex inclusion:

In 2013 Morgan Carpenter of Intersex Human Rights Australia designed the intersex flag.

(Please note in our original post on IG, we mistakenly attributed the creation of this flag to both Morgan and Tony Briffa, but we have since learned that Morgan Carpenter is the sole creator of this flag. Thanks).

In 2017 under the leadership of American civil rights activist Amber Hikes, Philadelphia’s Office of LGBT Affairs developed the rainbow flag to incorporate black and brown stripes to include black, brown, and people of colour.

Building on that in 2018 Daniel Quasar redesigned the flag to include trans people, creating the Pride Progress flag.

In 2021, Valentino Vecchietti of Intersex Equality Rights UK adapted the Pride Progress flag design to incorporate the intersex flag, creating this Intersex-Inclusive Pride flag 2021.

Since we posted this flag on our Instagram page: @intersex_equality_rights_uk @Valentino_Vecchietti and on Twitter: @WeAreIERUK @ValentinoInter - intersex people and allies from all over the globe have said it is bringing them joy to see intersex inclusion in the Pride Progress flag.

We are sharing the graphic freely with everyone.