D.
Davids Island. An island of 100 acres in Long Island Sound, within the township limits of New Rochelle, Westchester Co., N. Y. It was purchased in 1867 by the U. S. government, to be used for military purposes.
Dinkelsbuhl. A town of Bavaria, surrounded with a high wall, flanked with towers and ditches. It suffered much during the Thirty Years’ War.
Dorylæum (Phrygia). Soliman, the Turkish sultan of Iconium, having retired from the defense of Nicæa, his capital, was here defeated with great loss by the Crusaders, July 1, 1097.
Douglas. An ancient noble family of Scotland. The earls of Douglas, the earls of Angus, and the earls of Morton belonged to this family. Sir James Douglas, surnamed “The Good,” was the founder of their fame and grandeur. He commanded the left wing at Bannockburn in 1314, and was killed by the Saracens in Spain about 1330, in a pilgrimage to Palestine. James the second, earl of Douglas, was a famous warrior, and was killed at the battle of Otterburn in 1388. Archibald the Grim, third earl, fought for the French at Poitiers, and died about 1400. He was succeeded by his son Archibald, fourth earl, who displayed great courage at the battle of Shrewsbury (1403), where he fought against Henry IV., and rendered important services to Charles VII. of France, who rewarded him with the duchy of Touraine. He was killed at the battle of Verneuil, in France, in 1424.
Dry Tortugas. A group of ten small, low, barren islands belonging to Monroe Co., Fla. These islands served as a place of imprisonment for persons under sentence by courts-martial during the late civil war. Several criminals concerned in the conspiracy in which President Lincoln was murdered were confined here.