During this period, five different regions of the world had civilizations that advanced the frontiers of knowledge, government and the arts. Most of them developed independently of each other, because there was very little communication across long distances in the ancient world. No telephones or the internet existed yet! To pass a message from Asia to Europe required a dangerous trip of many months by a messenger. | During this period, five different regions of the world had civilizations that advanced the frontiers of knowledge, government and the arts. Most of them developed independently of each other, because there was very little communication across long distances in the ancient world. No telephones or the internet existed yet! To pass a message from Asia to Europe required a dangerous trip of many months by a messenger. |