The most serious is melanoma. Like all body tissues our skin is made up of cells: basal cells, squamous cells and melanocytes. Skin cancer types are named after the skin cell in which the cancer develops: basal cell carcinoma, squamous cell carcinoma and melanoma.
Pichilingue Harbour, La Paz, Baja California, Mexico. History. Although the city was officially founded in 1535, its area had been known by hunter and gatherer peoples since Neolithic times. Rock paintings and other artifacts dating as far back as 10,000 years ago attest to their presence in most regions of the Baja.
The Spaniards first entered the territory that is now Bolivia in 1535, but they did not fight any precious metals that they were looking for. Ten years later, the Spanish discovered the silver in PotosÃ­ and quickly relocated to that location. PotosÃ­ was officially established by Viceroy Francisco de Toledo in 1572, although it served as an urban-industrial center since 1545, the year in which rich veins of silver were discovered.