On May 23, 1915, Italy declared war on Austria-Hungary, aligning with of Russia, France and the United Kingdom.

In 1934, bank robbers Bonnie Parker and Clyde Barrow were shot to death during a police ambush in Bienville Parish, Louisiana.

In 2013, the Boy Scouts of America announced it would remove membership restrictions based on sexual orientation, while maintaining a ban on openly gay Scout leaders. (The ban on gay Scout leaders and organization employees was lifted two years later.)

In 2015, Irish referendum results showed a constitutional amendment in favor of recognizing same-sex marriage passing by a nearly 2-to-1 margin.

In 2018, NFL owners approved a new policy allowing players to protest during the national anthem by staying in the locker room but forbidding players from sitting or taking a knee if on the field.