World Cat Day, or International Cat Day, is a day to celebrate the world’s most popular pet. It was started in 2002 by the International Fund for Animal Welfare and other animal rights groups, To help celebrate, I put a collage together of all my cats, past and present, including: Sneakers, Vinny, Princess, Abbey, Alex, Tigger, Flash, Chris, Puck, Frankie and two cats we babysat for a few months, Luke and Matilda.