Oscar Romero was a Roman Catholic archbishop in El Salvador known for his outspoken advocacy for human rights and social justice during the late 20th century. He became a prominent voice against the violence and oppression faced by the poor in his country, particularly during the Salvadoran Civil War. Romero was assassinated on March 24, 1980, while celebrating Mass, which drew international attention to the struggles in El Salvador. He is remembered as a martyr and was canonized as a saint by the Catholic Church in 2018, symbolizing his commitment to faith and justice.