In celebration of the 50th anniversary of his seminal novel Things Fall Apart, PEN hosted a major tribute to Nigerian writer and literary luminary Chinua Achebe, with Chinua Achebe, Chris Abani, Chimamanda Ngozi Adichie, Michael Cunningham, Edwidge Danticat, Suheir Hammad, Ha Jin, Colum McCann, and Toni Morrison.