1451 (3148, Yin Metal Sheep): Tibet joins the Chinese sphere of influence. 1452-56 (3149, Yang Water Monkey / 3153, Yang Fire Rat): A Chinese treasure fleet sails up the Red Sea, sends a delegation to Egypt. On their return, they also spread tales about the Christian countries. 1453 (3150, Yin Water Chicken): Assam start paying tribute to the Hong. 1457 (3154, Yin Fire Ox): A crisis at the court of the ninth Hong emperor is solved in a pleasing way (see story). 1458: Thai kingdom Chiang Mai annexes Nan (later than OTL). 1459: Sultanate of Sulu founded on the Philippines.