It is estimated that between 1 and 2% of people have some kind of intersex variation and fall under the umbrella term of ‘sex variant’. (That’s around the same number of people who have red hair!) Yet, it is only in recent decades that intersex people have gained space in mainstream debates about equality and human rights. However, they have figured prominently in medical, religious, and legal arguments for centuries, serving as examples of competing ways of understanding gender and sex.