Sabiñánigo (Samianigo in Aragonese[2][3]) is a municipality located in the province of Huesca, Aragón, Spain, capital of the comarca of Alto Gállego.

The village is located on the right bank of the Gállego at its exit from the Tena Valley, at an altitude of 780 meters above sea level.

The origin of Sabiñánigo is Roman Empire and seems to be linked to the establishment of a military mansion, founded around the second century, on the banks of the road that connected Osca (present-day Huesca) with the thermal baths of Panticosa.

Since that time the enclave enjoyed privileges, not being subjugated to any rural lord until the Modern era, when it lost this advantageous condition.

And at the end of the Middle Ages (1492), Ferdinand the Catholic intervened to set the limits of its terms and solve the problems posed by the vacant knighthoods of honor in this place.

The Barrio de la Estación began to have a greater prominence than the original urban centre, and was consolidating thanks, first to shops, and then to the establishment of factories.

In 1920, the Franco-Spanish company Energía e Industrias Aragonesas (EIASA) established a modern chemical factory that would mark a milestone by achieving the synthesis of ammonia from hydrogen for the first time in the world.

In the following decade it absorbed Acumuer, Cartirana, Gésera, Jabarrella, Orna de Gállego and Senegüé and Sorripas, and parts of Ena, Gausa [es], and Oliván.

In the end, the Republican army did not manage to conquer Sabiñánigo, an important manufacturing centre at the time, despite having been on the verge of encircling it.

However, in the 2000s the industrial splendor of the town had been lost, with some of the plants closed and their workforce greatly reduced in other cases, although companies with a good number of employees and a significant volume of business still survive.

Some interesting places to visit are the Museo de Artes de Serrablo es, a museum that contains tools, clothes and all kinds of traditional objects of the region; and Pirenarium es, a theme park with a great collection of models of the Pyrenees range and the most famous buildings of Aragón.