Historical milestones and anniversaries of September 22-23

Historical records and almanacs highlight several significant events occurring on September 22 and 23.

In religious history, September 23 is the feast day of Padre Pio da Pietrelcina, the Italian Capuchin friar who died in 1968.

Notable political and social milestones include the 1932 renaming of the Kingdom of Hejaz and Nejd to the Kingdom of Saudi Arabia, and Armenia officially becoming an independent nation in 1991 following a referendum.

In Italy, the dates mark the anniversaries of the 1943 execution of Salvo D’Acquisto, a carabiniere who sacrificed himself to save civilians from Nazi retaliation, and the 1985 assassination of journalist Giancarlo Siani by the Camorra.

Scientific milestones noted include the 1846 discovery of Neptune and the 2011 announcement by CERN researchers regarding neutrino speed experiments.