Bastion fort (trace italienne)
Fortificación abaluartada (traza italiana)
- Date
- c. 1480-1530 · confidence medium
- Place
- Rome, Florence and Verona, Italy
- Credited to
- Giuliano and Antonio da Sangallo, Michele Sanmicheli, Francesco di Giorgio Martini
- People
- 👤 Antonio da Sangallo el Viejo1455–1534👤 Francesco di Giorgio Martini1439–1501👤 Giuliano da Sangallo1445–1516👤 Michele Sanmicheli1484–1559
- Field
- Tools
What it is
A low, thick earthen wall faced with masonry, its angular bastions eliminating blind spots and resisting artillery. It answered the bronze cannon and multiplied the cost of sieges.
What it led to
- Long siege warfare and standing armies (the military revolution)
- State taxation and public debt to fortify borders
- Military engineering as a profession (Vauban) and applied geometry
- Fortified colonial cities in the Americas and Asia
Built on
- Euclidean axiomatic geometryc. 300 BCE
- Concentric castlec. 1270
- Cast bronze cannon with trunnionsc. 1450-1500
- Medieval castle
- Euclidean geometry
Made possible
- Descriptive geometry1765
- Vauban system
- Civil engineering and engineering schools