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 Mexica founded Mexico-Tenochtitlan in 1325 as an altepetl (city-state) located on an island in Lake Texcoco, in the Valley of Mexico. It became the capital of the expanding Mexica Empire in the 15th century, until captured by the Spanish in 1521.