Judaism: Judaism is a tradition grounded in the religious, ethical, and social laws as they are articulated in the Torah -- the first five books of the Hebrew Bible. For Jews, human nature is rooted in the divine image and therefore has infinite value. Consequently, the purpose of existence is to relate to the divine and human "other."

• Use the Origin Map Lens to trace Judaism's beginnings.
• Then open the Tree Lens, clicking on Judaism, in order to see the development of Judaism.
• Read the Overview and Quick Facts of Judaism to get a quick introduction.
• Read about the Origins of Judaism, and use the Study Questions at the end of the article.
• Explore Judaism's beliefs about God's relationship with the Jewish people. Use the Study Questions at the end of the article.
• Read about Judaism's teachings on the purpose of existence. Use the Study Questions at the end of the article.
• Choose one further topic about Judaism that interests you: Sacred writings, the Jewish experience in the 20th century, holidays and holy days, including Shabbat, or Judaism's beliefs about chosenness.

Christianity: Christianity issued out of Judaism in the early 1st century. It centers on the life, teachings, mission, death, and resurrection of Jesus Christ. Traditional Christian beliefs include the belief in the one and only true God, who is one being and exists as Father, Son, and Holy Spirit, and the belief that Jesus is the divine and human Messiah sent to the save the world.

• Use the Origin Map Lens to trace Christianity's beginnings.
• Then open the Tree Lens, clicking on Christianity, in order to see the development of Christianity.
• Read the Overview and Quick Facts of Christianity to get a quick introduction.
• Read about the Origins of Christianity, and use the Study Questions at the end of the article.
• Explore Christian beliefs about the Jesus and the beginnings of the Church. Use the Study Questions at the end of the article.
• Read about Christian teachings on afterlife, salvation, and heaven. Use the Study Questions at the end of the article.
• Choose one further topic about Christianity that interests you: the origins of the Bible, Christianity's relationship with western civilization, the Trinity, or Christian sacraments.