Old Map of Sussex, 1811 - First Triangulation Ordnance Survey Chart - Hills, Castles, Steeples san diego the massive Leeds General Infirmary

the massive Leeds General Infirmary isn't on this map - it moved to its current site in 1869

postcode or borough

As you'd expect

Finsbury Park (literally the big park)

Old Map of Sussex, 1811 - First Triangulation Ordnance Survey Chart - Hills, Castles, Steeples san diego the massive Leeds General InfirmaryA hugely important, rare and interesting map of Sussex (West, East and Mid) from 1811, created by the Ordnance Survey, which was only a few years old at the time. This is literally a map of triangles but they're very important triangles. They're highly accurate triangles between various points of Hampshire, measured using theodolites. These measurements, using Pythagoras's theorem and a bit of clever interpolation to take the Earth's curvature into