ts existence was doubtful. Only the latest archeological researches taken in 1928 and later in 1960-19The history of China is generally divided into the periods of dynasties. Each dynasty had remarkable features which differentiated it from others and definite timelines which were limited by the ruling of the representatives of one or another dynasty. First dynasty was founded by the emperor Yu and lasted from approximately the 21st century BC to a little earlier of the 16th century BC. But till recently its existence was doubtful. Only the latest archeological researches taken in 1928 and later in 1960-197eatures which differentiated it from others and definite timelines which were limited by the ruling of the representatives of one or another dynasty. First dynasty was founded by the emperor Yu and lasted from approximately the 21st century BC to a little earlier of the 16th century BC. But till recently its existence was doubtful. Only the latest archeological researches taken in 1928 and later in 1960-19the representatives of one or another dynasty. First dynasty was founded by the emperor Yu and lasted from approximately the 21st century BC to a little earlier of the 16th century BC. But till recently its existence was doubtful. Only the latest archeological researches taken in 1928 and later in 1960-19 from approximately the 21st century BC to a little earlier of the 16th century BC. But till recently its existence was doubtful. Only the latest archeological researches taken in 1928 and later in 1960-19ts existence was doubtful. Only the latest archeological researches taken in 1928 and later in 1960-1970s have proved the existence of the Xia dynasty. Until then only the facts mentioned in old Chinese scripts gave the information about it. Bronze implements, bronze sites and tombs prove the existence of Xia dynasty. Xia dynasty included seventeen emperors all of whom were blood descendants of Yu the Great and his son Qi.

The legend says Yu became the emperor in an unusual way. Thousand years ago the