Greg Jenner is joined in Egypt by historian Professor Islam Issa and comedian Athena Kugblenu to learn all about the history of science and philosophy in the city of Alexandria. Founded by ancient conqueror Alexander the Great, Alexandria from its earliest days was a city at the forefront of scientific discoveries, philosophical enquiry and religious debate. At its height, the city’s famous library housed nearly one million texts, and attracted thinkers like Hypatia of Alexandria, Euclid and Heron (who invented the steam engine). This episode tells the story of this incredible site of knowledge and culture, taking in its epic founding, the rise of Christianity and its impact on the city, its fate during the Crusades, the coming of Napoleon, and its role in the rise of the Arab nationalism movement.