Hiram Powers' Greek Slave
The actual statue
Powers' *Greek Slave* (1844) showed a naked Christian woman captured by Turks during the Greek War of Independence. It toured America to massive crowds—the first acceptable nude in Victorian culture because she was a helpless victim.
Sonnet pivot
The volta turns from describing the statue to commanding it. The poem shifts from passive observation to active demand—art must *do* something about injustice.
East and West
Turkish slavery of Greeks (East) and American slavery of Africans (West). Barrett Browning is explicitly linking the statue's subject to abolitionism—controversial for a "respectable" artwork.