Saint Ansgar, also known as the "Apostle of the North," was a Christian missionary born in 801 AD in France. He is best known for his efforts to spread Christianity in Scandinavia, particularly in Sweden and Denmark. Ansgar founded the first Christian church in Sweden and worked to establish a Christian community in the region. Ansgar was canonized as a saint by the Catholic Church and is celebrated on February 3rd. His missionary work laid the foundation for the later spread of Christianity in Northern Europe. He is often remembered for his dedication and perseverance in the face of challenges during his missions.