Sources describe the movement flourishing through the 1870s and 1880s but name no closing year, decline event, or work marking its end; checked in full for a decline date, the Wilde trial, or a turn-of-the-century marker, none given.
What would resolve this A literary-historical source anchoring Aestheticism's decline to a specific year, event, or work rather than a decade-level description.
OpenLiterary history and periodization scholarshipAestheticism (Wikipedia)