The Spanish forces began their conquest of the Canaries in 1402. The islands fell one by one, the last one being Tenerife, which was finally conquered after heavy Spanish losses in July 1496.
What language do they speak in Tenerife?
As in the rest of Spain, in the Canary Islands the official language is Spanish. However, as in the majority of countries, there are many people who speak English, the second most spoken language, and many people also understand German.