Judaism
Judaism is around 3500 years old. Jews believe that there is only one God and that the Jewish People were specially chosen to receive God's guidance.
Jewish thought and scholarship has sometimes led the world, in science and politics Jews have made massive impacts. Perhaps the first religion to be comprehensively monotheistic, from it sprang both Islam and Christianity.
Related Links
www.bbc.co.uk
http://www.bbc.co.uk/religion/religions/judaism/index.shtml