July 29, 2011.Rashid al-Din asserts that Genghis Khan was born in 1155, while the Yuanshi (شھت·, History of the Yuan dynasty) records his year of birth as 1162. According to Ratchnevsky, accepting a birth in 1155 would render Genghis Khan a father at the age of 30 and would imply that he person(recently crushed) Russians that they had beaten the Mongols and driven thems reconnaissance campaigns that tried to get the feel of the political and cultural elements of the regions. In 1225 both divisions returned to Mongolia. These invasions added Transoxiana and Persia to an already formidable empire while destroying any resistance along the way. Later under Genghis Khan's grandson Batu and the Golden Horde, the Mongols returned