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Great Wall of China

(Encyclopedia)Great Wall of China, series of fortifications, c.3,890 mi (6,260 km) long (not including trenches and natural defensive barriers), winding across N China from Gansu prov. to Liaoning prov. The wall, r...

Gregory the Great, Saint

(Encyclopedia)Gregory the Great, Saint: see Gregory I, Saint. ...

Mona, island, Great Britain

(Encyclopedia)Mona, Roman name for the island of Anglesey, Wales. It was also sometimes used to designate the Isle of Man. ...

Leo the Great, Saint

(Encyclopedia)Leo the Great, Saint: see Leo I, Saint. ...

Bruno the Great, Saint

(Encyclopedia)Bruno the Great, Saint: see Bruno, Saint (d. 965). ...

Basil the Great, Saint

(Encyclopedia)Basil the Great, Saint băˈzĭl, bāˈ– [key], c.330–379, Greek prelate, bishop of Caesarea in Cappadocia, Doctor of the Church and one of the Four Fathers of the Greek Church. He was a brother o...

Severn, river, Great Britain

(Encyclopedia)Severn sĕvˈərn [key], Lat. Sabrina, one of the principal rivers of Great Britain, c.200 mi (320 km) long, rising on Plinlimmon Mt., W Wales, and flowing NE and E to Shrewsbury, W England, and from ...

lithium

(Encyclopedia)lithium lĭthˈēəm [key] [Gr.,=stone], metallic chemical element; symbol Li; at. no. 3; interval in which at. wt. ranges 6.938–6.997; m.p. about 180.54℃; b.p. about 1,342℃; sp. gr. .534 at 20�...

Qinghai Hu

(Encyclopedia)Qinghai Hu kōkō nōr [key], salt lake, c.1,625 sq mi (4,210 sq km), in the Tibetan highlands, NE Qinghai prov., China; one of the largest lakes in China. At an altitude of 10,515 ft (3,205 m), it is...

Danakil

(Encyclopedia)Danakil, desert region, NE Ethiopia and neighboring portions of Djibouti and Eritrea, c.350 mi (560 km) long and 50–250 mi (80–400 km) wide, between the gulfs of Zula and Tadjoura. It is bordered ...