sentences:  The Mongolian invasions were soon followed by those of other Central Asian tribes, such as the Kara Koyunlu, Timurid dynasty and Ağ Qoyunlu, which continued from the 13th century until the 15th century.After incessant invasions, each bringing destruction to the country, with time Armenia became weakened.In the 16th century, the Ottoman Empire and the Safavid dynasty of Iran divided Armenia.