custom taxonomy – Taxonomies starting with a hyphen (minus) to assign B.C. dates to a post
I have a date slider to filter posts in the archive by a custom taxonomy that assigns specific years to each post. I would also like to assign B.C. dates to some posts. I figured this would work best by putting a minus in front of the numbers, however wordpress automatically deletes the minus. Does anyone have an idea how I can prevent this or how I could solve this differently?