Complex sentence: In 1870 the infirmary transferred onto land as the Seamen's Dreadnought Hospital at the Royal Greenwich Hospital, and since 1986 as the' Dreadnought Unit'at St Thomas's Hospital.
Split into simpler sentences: In 1870 the infirmary transferred onto land as the Seamen's Dreadnought Hospital at the Royal Greenwich Hospital. Since 1986, this has become the' Dreadnought Unit'at St Thomas's Hospital.