History of Xian app for iPhone and iPad

Interactive reading is a special technique of memorizing information based on interval repetition.
Dates of important events are missing in the text, and you will need to add them.
If you specify a right date - you move forward, and if youre wrong - start over.
This is a very effective way of learning of new material (as opposed to usual reading).
In such a manner youll actually remember what you read!

Xian formerly romanized as Sian, is the capital of Shaanxi province, located in the northwest of China, in the center of the Guanzhong Plain. One of the oldest cities in China, the city was known as Changan before the Ming dynasty. Xian is the oldest of the Four Great Ancient Capitals of China, having held the position under several of the most important dynasties in Chinese history, including Zhou, Qin, Han, Sui, and Tang. Xian is the starting point of the Silk Road and home to the Terracotta Army of Emperor Qin Shi Huang. Since the 1990s, as part of the economic revival of interior China especially for the central and northwest regions, the city of Xian has re-emerged as an important cultural, industrial and educational centre of the central-northwest region, with facilities for research and development, national security and Chinas space exploration program....