Complex sentence: With the rise of architectural historicism in the mid- 19th century it is no longer possible to speak of a Greek revival movement, where the Doric is employed it is as another self-consciously anachronising style.
Split into simpler sentences: With the rise of architectural historicism in the mid- 19th century, it is no longer possible to speak of a Greek revival movement. Where the Doric is employed, it is as another self-consciously anachronising style.