William Byrd's diary shows what?

• A. A religious focus and a habitual cruelty towards the slaves on his plantation.
• B. A travel diary of Europe.
• C. A mathematical treatise on surveying.
• D. A political manifesto about plantation governance.

Answer: (C)

This question centers on what William Byrd’s diary primarily documents: his work as a land surveyor in colonial Virginia. The diary contains detailed notes on measuring land, plotting parcels, and calculating distances and angles, all using the surveying tools of the time. These entries show a careful, mathematical approach to mapping and dividing land, including how to determine acreages and lay out boundaries. That focus on measurement, geometry, and practical surveying methods is why it fits best as a mathematical record of surveying. The diary isn’t about Europe travel, religious devotion, or political manifestos; its strongest throughline is the precise, calculation-driven process of surveying land.