Captions Right: Another shot of our peripatetic Business Management prof at the Great Wall of China. Helping him with the flag in this photo are two of his friends from the Foreign Affairs office. The Great Wall, by the way, is 2400 km long, running east to west from the Yellow Sea to Central Asia, and parts of it date back to the 4th century B.C. It was used for defence’ and as a signalling line for communications. Below: Al and the flag at the entrance to the Forbidden City in Beijing which was the palace of the Emperors of China from 1421 to 1911.