Slavery still exists today - and is a booming business worldwide. Without slavery, most of the products we consume everyday would be significantly more expensive.
At the beginning of the 20th century, Christians made up approximately 20 percent of the population of the Arab world. Today, only about five percent of the Arab world is Christian.
Where do angels come from? Why do they have wings? And at what point did they become a key decorative feature in the most important churches of the Christian faith?
The Germans - who are they and what are they like? Have they become who they are because of the country’s climate? Why are they generally so keen to stay in Germany?