What is known at present as The Union two centuries ago was not as such, the history of the “creación ” of Union goes back to the XIXth century, where two urban areas existed: Garbanzal and The Smithies. The areas were a discord source and both had experienced a big migratory flow that owed to the mining to itself.
The Ist populate of The Union makes independent of Cartagena in 1867 due to heyday of the mining. The most ancient establishment finds in delegation of Portman, which in Roman epoch was an important port with the name of Portus Magnus.

Monuments religious:
Parish Our Lady of the Rosary
Parish Our Lady of Los Dolores

Civil monuments:
Ancient Public Market
House of the Pine nut kernel
Workers' lyceum
Ancient Hospital of the Charity
House of the Uncle Wolf

Gastronomy: michirones with bobby, hotpot of vegetables , chupaeros snails, grouper to the casserole, soup of fish, kid to stove, home-made sausages, tápenas

Towns: The Lazaretto, Port, The Hope, The Union, The Oliveras, The Gardens, Them Walls, You will Come across Them, Portman, Roche, Roche Alto, Roche Bajo, Torreblanca