Samar is an island in the Visayas, within central Philippinesand considered the third largest island in the country. The island is divided into three provinces: Samar province (the Mainland of Samar), Northern Samar province, and Eastern Samar province. These three provinces, along with the provinces on the nearby islands of Leyte and Biliran are part of the Eastern Visayas region.
Samar is the easternmost island in the Visayas. The island is separated from Leyte by the San Juanico Strait, which at its narrowest point is only about two kilometers across. This strait is crossed by the San Juanico Bridge. Samar lies southeast of the Bicol Peninsula on Luzon, the country's largest island; the San Bernardino Strait separates the two. To the south of Samar is the Leyte Gulf, the site of the Battle of Leyte Gulf, one of the most decisive naval battles during the Second World War. The gulf opens out into the Philippine Sea, found to the east of Samar and is part of the Pacific Ocean.
Samar was the first island of the Philippines sighted by the Spanish expedition of Ferdinand Magellan on 16 March 1521 after having left the Mariana Islands. Realizing he had arrived at an archipielago he charted the islands as San Lazaro (Saint Lazarus in Spanish) because they were sighted on Lazarus Saturday. Even if Samar was the first island of the Philippines sighted by Magellan, he did not land and continued sailing south till, after anchoring inSuluan Island, he finally landed on Homonhon Island on 17 March 1521.