Magdaleno Vivero and Domingo Camacho petitioned the Spanish Government to grant Tolosa autonomy from Tanauan.During the liberation of the Philippines in 1944, Tolosa and its north eastern neighboring towns were spared from bombardment by the United States and Philippine Commonwealth forces when Eagle Scout Valeriano Abello of barangay San Roque, including two other identified scouts braved Japanese sniper fire and directed US and Filipino fire to the exact location of Japanese batteries along Leyte's north-eastern coast.Abello's act saved the lives of thousands of Leytenos and allowed the Filipino Soldiers and Allied Forces unhampered landing on the coast.This unhampered attack dealt the blow that broke the back of the Japanese resistance in Leyte, and ultimately The Philippines.It was in Tanghas, a barangay in Tolosa, where the famous American composer Irving Berlin first presented his renowned composition "Heaven Watch the Philippines" together with his Filipino audience including then President Sergio Osmeña and Carlos P. Romulo.The sand in the beaches of Tolosa were black until the 1970s because of the abundance of the mineral called magnetite, a naturally magnetized iron, which was a prime raw material for high quality steel.INCO (Iron, Nickel & Copper Ore), a mining company based in nearby barangay Opong, stripped the town's beaches of vegetation to get the mineral, destroying much of the wide beaches and rendering the town's coastal defenses bare against the onslaught of tidal erosion.