The world's largest continent, Asia has played a major role in world history since ancient times. Three regions of Asia are known as "cradles of civilization" because important cultures began there thousands of years ago. Discover more in Asia, a title in the Exploring Continents series. Exploring Continents takes readers on a journey through the unique features and diverse cultures of Earth's seven continents. This series delves into the history, geography, climate, flora and fauna, natural resources, economics, and more of each continent. It includes fascinating facts on a variety of topics, ranging from popular sports in Asia to the wildlife in Australia. Exploring Continents is a series of AV2 media enhanced books. A unique book code printed on page 2 unlocks your interactive eBook. These books come alive with video, audio, weblinks, slideshows, activities, and much more.