Final answer:
The DSM-II was published in 1962 and listed homosexuality as a disorder until 1973, when it was removed following advocacy and a shift in understanding within the psychiatric community.
Step-by-step explanation:
The DSM-II (Diagnostic and Statistical Manual of Mental Disorders) was published in 1962, and initially listed homosexuality as a disorder. Activism and evolving understandings of sexuality led to the removal of homosexuality as a disorder from the DSM-II in 1973. This decision marked a significant advance in the LGBTQ rights movement and the field of psychiatry, as it represented a departure from pathologizing same-sex attraction.