1813
ID: 450
Siméon Denis Poisson notes duality between vertices and faces of polyhedra, early graph duality concept
ID: 450
1813
ID: 704
Prussia joins Sixth Coalition against Napoleon; Battle of Leipzig defeats Napoleon
ID: 704
1813
ID: 705
Calderari split from Carbonari - become Catholic legitimists opposing revolutionary societies
ID: 705
1813
ID: 2332
English Insolvent Debtors Act - allows non-traders to obtain release from debtors' prison after surrendering property
ID: 2332
1813
ID: 5577
Universal conscription introduced in Prussia - every male citizen owes military service, creating Landwehr (militia) system
ID: 5577