Which two groups most helped the freedmen during the reconstruction era?

During the Reconstruction era, the Freedmen's Bureau and various Northern abolitionist organizations played pivotal roles in assisting freedmen. The Freedmen's Bureau provided essential services, including education, healthcare, and legal support, aimed at helping newly freed African Americans integrate into society. Additionally, Northern abolitionist groups offered financial aid, advocacy, and resources to promote civil rights and economic opportunities for freedmen. Together, these groups significantly contributed to the advancement of African Americans during this transformative period.