Simon Sebag Montefiore looks at the impact of a new faith, Islam, on Jerusalem.
In India, Simon's journey takes him from the coast of Gujarat to Kolkata.
A Muslim man and an Irish Catholic woman encounter strong opposition after falling in love
How Jerusalem came into being and became so important to Judaism, Christianity and Islam.
Rageh Omaar analyses the introduction of the Sharia moral code and the concept of jihad.
Robert Bartlett explores the impact of the Normans on southern Europe and the Middle East.