An awareness observance on the last Wednesday in March raising awareness for the protection and conservation of manatees and their habitats from threats like boat collisions and pollution.

A religious observance on March 25 recognizing the sanctity of human life from conception and promoting awareness for the protection of unborn children.

A fun observance on the last Wednesday in March celebrating the iconic little red wagon toy, childhood imagination, outdoor play, and family memories with Radio Flyer wagons.

A heritage observance on March 25 honoring the heroism and sacrifice of Medal of Honor recipients, commemorating the first presentation of these awards on March 25, 1863.

A fundraising campaign on the fourth Wednesday of March rallying public donations, blood drives, and volunteering to support the American Red Cross's humanitarian and disaster relief work.

A religious observance on March 25 commemorating the biblical visit of the archangel Gabriel to the Virgin Mary announcing she would conceive Jesus Christ, marking the Incarnation.

A cultural observance on March 25 celebrating mathematics education and numeracy skills through global online competition among school-aged students.

An awareness observance on March 25 honoring the memory of victims of slavery and the transatlantic slave trade, promoting education about this historical injustice and its enduring consequences.

A heritage observance on March 25 marking the Feast of the Annunciation, the historical English legal new year, spring renewal, and the start of the agricultural season.

A heritage observance on March 25 commemorating the start of the Greek War of Independence on March 25, 1821, symbolizing the rebellion against Ottoman occupation and the rebirth of the Greek nation.

A cultural observance on March 25 honoring nonviolent protest against war and the promotion of world peace, inspired by John Lennon and Yoko Ono's original bed-in demonstration.

A fan observance on March 25 encouraging fans worldwide to celebrate the life and works of J.R.R. Tolkien by reading favorite passages from his books.