This city was built on the bank of the river Tigris. The circumference of the city was sixty miles, and it was surrounded by walls one hundred feet high, and so broad that three chariots might ride abreast upon the top. The walls were fortified with fifteen hundred towers, each two hundred feet high. When this great city was completed, King Ninus determined to march against the Bactrians, who yet withstood his power. According to the accounts of Ctesias and Diodorus, his army numbered 1,700,000 foot-soldiers, 210,000 cavalry, and about 10,600 chariots of war. The narrowness of the passes which protect the entrance to Bactria forced Ninus to divide his forces. The king of the Bactrians met him with 400,000 men. The Assyrians were successful in forcing their way into the country, but they suffered great loss. At length all of the cities were captured except Bactria, the chief city, where was the palace of the king. Ninus now besieged this city, and Menones, who was one of the chief counsellors of the king, sent for his wife Semiramis to come to the camp. Semiramis seized this favorable opportunity to display her power. She clothed herself in peculiar garments, so that it could not be ascertained whether she was a man or a woman; and this style of robe at a later day became the costume of the Medes and Persians. When she arrived in the camp, she perceived that the attack was directed chiefly against that part of the city lying in the plain, and not against the citadel; and she also perceived that this caused the Bactrians to guard their fortifications with less vigilance. She thereupon made selection of a body of troops who were accustomed to climbing, and led them in person to the attack of the citadel. This she captured, and then signalled to the army below in the plains. The Bactrians, perceiving that their citadel was taken, made weak resistance, and the city was conquered. King Ninus so admired the daring courage of this beautiful woman who had gained for him such a victory, that he determined to make her his wife, and offered his own daughter to Menones, in exchange for his wife Semiramis. But Menones was too much attached to his wife to relinquish her to another, and then Ninus threatened to put out the eyes of Menones unless he would consent to this arrangement. The unhappy Menones, overcome with jealous love and fear, hung himself in despair, and King Ninus then married Semiramis. Accounts differ regarding the death of Ninus, which placed Semiramis upon this powerful throne. According to some, Ninus died after reigning fifty-two years, and bequeathed to her the sovereign power, their young son, Ninyas, being too young to reign. Others state that Ninus, at the request of Semiramis, granted to his young and beautiful wife the absolute sovereignty of his empire for five days. The young queen of twenty was seated upon the royal throne, the signet ring was placed upon her finger, and all the provinces of the realm