On May 23, 2001, the United States Supreme Court ruled in 'United States v. Morrison', which struck down a key provision of the Violence Against Women Act, altering the landscape of federal protections against gender-based violence.

May 23, 1990, was the day when the World Health Organization removed Homosexuality from its list of mental disorders, a landmark decision for LGBTQ+ rights.

On May 23, 1969, the first successful test flight of the Boeing 747 took place, marking a significant milestone in commercial aviation history.