Example image of eyePlorer eyePlorer map for 'Vannoccio Biringuccio': Italy Metallurgy De la pirotechnia Metalworking Foundry Arsenal Iron Mining Mint (coin) Siena Cannon Casting (metalworking) Florence Venice 1480 October 20 Pandolfo Petrucci Pope Clement VII Potassium nitrate Timeline of materials technology Mercury silvering 1539 Welding Pseudo-Geber History of materials science Antimony Copper