1439
ID: 102
Gutenberg begins experiments with movable type - combining wine press, metallurgy, and oil-based ink
ID: 102
1439
ID: 4783
Council of Florence - desperate Byzantines accept union with Rome for military aid, people reject
ID: 4783
1439
ID: 5050
Council of Florence - another reunion attempt under Pope Eugenius IV, Greeks agree then reject upon return home
ID: 5050
1439
ID: 5129
Council of Florence attempts reunion of Eastern and Western Churches - Cosimo hosts Byzantine Emperor John VIII
ID: 5129