Calbiga

In 1649, Calbiga was an annex or visita of Catbalogan; later in 1768, Calbiga was transferred to the jurisdiction of Umauas. All through Jesuit times, Calbiga remained a visita until 1772, when it had its first residential pastor, the Franciscan Fray Miguel Rico (de Jesus), O.F.M.. Calbiga was constituted as a separate unit under the advocacy of the Anunciacion.

In 1803, Fray Juan Caballero de Brozas, O.F.M. built a wooden church but in 1808, a typhoon destroyed this church and was rebuilt by the same Fray Brozas. By 1840, Brozas's second church was in bad state.

In 1853, Fray Francisco Moreno de Montalbanejo. O.F.M. had gathered enough material for a stone church. However, Redondo (1884, 217) that the church was wood roofed with thatch.

The Jesuits left no permanent architectural imprint in the town.

The present barrio "Binongto-an (meaning, "once a town) was the original Calbiga settlement. Legend - as recorded by Atty. Singzon - has it that the people of Calbiga originated from two brothers, Calpis and Bituan. Bituan established a village near the mouth of the river while Calpis stayed upstream the exact location of the town today. The descendants of Bituan later abandoned the coastal village to join the descendants of Calpis.

The territory now comprising Pinabacdao was once part of Calbiga, since its annexation in 1903 while the still-undivided Samar was reorganized,^[7] until its reorganization as a separate municipality in July 1946.^[8]

Poverty incidence of Calbiga

Source: Philippine Statistics Authority^{[15][16][17][18][19][20][21][22]}

Langun-Gobingob Caves (Barangay Panayuran): The largest cave system in the Philippines, reputed to be the second largest in Asia and the world's third largest karst formation, is 7 km. long with an area of 900 square km. The area is composed of at least 12 interconnected caves. Locals believe that the caves are home to ancient primordial spirits and the spirits of Waray ancestors, making the caves one of the most sacred zones in Samar.

Lulugayan Falls and Rapids (Barangay Literon): Hundreds of waterfalls cascade down the 14-kilometer rapids from the source at Lake Kalidongan to the Calbiga River. The most majestic and panoramic is the Lulugayan Falls at Barangay Literon Correche. Approximately fifty meters wide, Lulugayan Falls has been dubbed by tourists as a Mini Niagara.

Kalidongan Lake (Barangay Caamlongan): The eternal spring—the mythical crater-like lake, 90–100 meters in diameter, lined with clean white limestone. Its clear, fresh water endlessly flows down the rapids, onto the Calbiga River and Maqueda Bay.

Maqueda Bay and Mangrove Forests: The richest spawning grounds in Eastern Visayas for Fish and crustaceans and one of the pillars of the island's economy.

Calbiga River: The river is the town's thriving lifeline. Small bancas daily go upstream and loaded with native merchandise. It serves 17 barangays as transport byway and water source.

Kanyawa Caves (Barangay Caamlongan): A little farther to the east is another huge caves system recently explored by French and Italian spelunkers. The caves system consists of fifteen galleries of distinctive features and underground rivers, and numerous stalactites and stalagmites.

Children's Play Area and Nature Park (Barangay Bacyaran): The first phase of the Calbiga Nature Park will also include a Visitor Center, Multi-purpose Pavilion, Amphitheater, Boardwalk and many more.

• Calbiga Western Samar College
• Calbiga National High School
• Calbiga Central Elementary School
• there are also other complete elementary and primary schools in some barangays.

• Esteban Singson – Philippine senator from the 9th District (1916 – 1922)^[23]

• Rhojan Kieth O. Rueda – Filipino scout leader, youth advocate, and recipient of the Scout of the World Award; served as a JOTA-JOTI 2025 Ambassador.