It had one ref and was marked {{stub}} - for a series of public art pieces relating to two major public events in a UK city. The event only really reaches 2 or 3 major city areas for 3 months every couple of years; I don't bother looking but I guess it's not WP:NOTABLE or whatever the tag is.

I'm not bothered really; better to delete them then than when I'd actually written the article.