Bacon, Sir Francis, [321], [355], [433]
Bagdad, [256], [267], [290], [292], [432], [433]
Bahamas, [407]
Baldwin of Flanders, [272]
Balkan peninsula, [108], [200], [230], [392], [429]
Balkh, [299]
Balloons, altitude attained by, [4]
Baltic, [415]
Baltic Fleet, Russian, [404]