Celebrations Today – September 23 Holidays and observances Celebrate Bisexuality Day (Bisexual community) Christian feast day: Adomnán Padre Pio Pope Linus Sossius Thecla (Roman Catholic Church) September 23 (Eastern Orthodox liturgics) Grito de Lares (Puerto Rico) Holocaust Memorial Day (Lithuania) Kyrgyz Language Day (Kyrgyzstan) National Day (Saudi Arabia) Teachers’ Day (Brunei) Celebrations Today – USA: […]