or Martha Santa, a town of New Granada, South America, capital of a province of the same name in the department of Magdalena. It stands on the Caribbean Sea, 105 miles N.E. of Cartagena, in Lat. 11. 15. N., Long. 74. 18. W. It was founded in 1525, and was constituted an episcopal city four years afterwards. It was repeatedly sacked by pirates during the sixteenth and seventeenth centuries; and in 1672 was completely pillaged by a French and an English vessel. Latterly, however, it rose into considerable importance as a commercial city, and enjoyed the almost exclusive privilege of importing goods for the capital of the country. It suffered much from the attacks of the Indians during the revolutionary war, and does not appear to have regained its former importance. The harbour is one of the best on this coast, having sufficient depth of water and good holding ground. It is defended by a castle on the summit of an isolated and almost perpendicular rock, and by several batteries. The cathedral is a very conspicuous object; but neither its architecture nor its internal decorations are worthy of notice. The climate is salubrious, although in summer the heat is very great; and the town is abundantly supplied with water. Pop. about 8000