A popular pet memorial poem, known as "The Rainbow Bridge", has a history that was once lost. The poem is being referenced in various recent pet memorial announcements, including those from a Gogglebox family, Formula 1 driver Lewis Hamilton, and actress Janella Salvador. It appears that there may be a dedicated day to remember pets, with some outlets mentioning a Rainbow Bridge Remembrance Day and a National Pet Memorial Day, although the specifics of these days are unclear.