Conversation so far:
When did Benjamin Henry Latrobe live in Virginia?
Benjamin Henry Latrobe arrived in Norfolk, Virginia, in mid-March 1796 after a harrowing four-month journey aboard the ship, which was plagued with food shortages under near-starvation conditions.

Question: How long did it take to build the penitentiary?
Self-contained rewrite: How long did it take for Benjamin Henry Latrobe to build the State Penitentiary in Richmond?