5,700 hospitalsi2) Aetna is the direct descendant of Aetna (Fire) Insurance Company of Hartford Connecticut.i3i The name of the company is based on Mount Etna, at the time the most active volcano in Europe.14) Contents History Timeline 1810s 1850s 1860s 1870s 1880s 1890s 1900s 1910s 1960s 1970s