Religion on Europe has a long and complicated history. Read here to find out some of the main events that played a huge factor in how our worlds history was shaped. Delphian School is an independent, coeducational day and boarding school located in Sheridan, Oregon open to students from around the world. We offer a rigorous academic independent-study program, with a strong emphasis on practical learning, for primary through high school students. Delphian also offers a highly regarded English-as-a-Second-Language program and boasts a diverse, international student body representing over eighteen countries.