The 73rd World Science Fiction Convention (Worldcon), also known as Sasquan, was held on August 19–23, 2015, at the Spokane Convention Center in Spokane, Washington.
Konvensi Fiksi Ilmiah Sedunia ke-73 (Worldcon), juga dikenal sebagai Sasquan, diadakan pada 19–23 Agustus 2015, di Spokane Convention Center, Spokane, Washington.