News & Events Upcoming Events Immaculate Conception Immaculate Conception December 8, 2025 / 8:00am - 5:00pm Immaculate Conception Celebrates the conception of the Blessed Virgin Mary in the womb of Saint Anne; and nine months later, on September 8, Christians celebrate the Nativity of the Blessed Virgin Mary. More Upcoming Events Denison’s Pride Day Oct 9, 2025 / 8:00am - 5:00pm Denison’s Pride Day Denison’s Pride Day Oct 8, 2026 / All-day Denison’s Pride Day Denison’s Pride Day Oct 14, 2027 / 8:00am - 5:00pm Denison’s Pride Day