Christian feast day: Feast of the Immaculate Conception (public holiday in several countries, a holy day of obligation in others), and its related observances: Festa da Conceição da Praia, celebrating Yemanjá, Queen of the Ocean in Umbanda (Salvador, Bahia)

In the Catholic Church, several locations around the world invoke the patronage of the Immaculate Conception. Catholic diocesan authorities with the expressed and written approval of the Pope in countries including the United States, Brazil, Korea, the Philippines and Spain designate the Blessed Virgin Mary as their principal patroness.

Yemọja is the major water spirit from the Yoruba religion. She is the mother of all Orishas. She is also the mother of humanity. She is an orisha, in this case patron spirit of rivers, particularly the Ogun River in Nigeria, and oceans in Cuban and Brazilian orisa religions. She is often syncretized with either Our Lady of Regla in the Afro-Cuban diaspora or various other Virgin Mary figures of the Catholic Church, a practice that emerged during the era of the Trans-Atlantic slave trade. Yemọja is said to be motherly and strongly protective, and to care deeply for all her children, comforting them and cleansing them of sorrow. She is said to be able to cure infertility in women, and cowrie shells represent her wealth. She does not easily lose her temper, but when angered she can be quite destructive and violent, as the flood waters of turbulent rivers. Some of the priests of Yemọja believe that she used her fresh water to help Ọbàtálá in the molding of human beings out of clay.

Umbanda is a religion that emerged in Brazil during the 1920s. Deriving largely from Spiritism, it also combines elements from Afro-Brazilian traditions like Candomblé as well as Roman Catholicism. There is no central authority in control of Umbanda, which is organized around autonomous places of worship termed centros or terreiros, the followers of which are called Umbandistas.

Salvador is a Brazilian municipality and capital city of the state of Bahia. Situated in the Zona da Mata in the Northeast Region of Brazil, Salvador is recognized throughout the country and internationally for its cuisine, music, and architecture. The African influence in many cultural aspects of the city makes it a center of Afro-Brazilian culture. As the first capital of Colonial Brazil, the city is one of the oldest in the Americas. Its foundation in 1549 by Tomé de Sousa took place on account of the implementation of the General Government of Brazil by the Portuguese Empire.