United States, 357, 410, 411, 422, 434; Declaration of Independence, 338; treaty with Britain, 339; expansion of, 382 et seq.
Universities, 295, 304, 355, 361
Uranus, 2, 3
Urban II, Pope, 268, 272, 432
Urban VI, Pope, 285, 433
Utopias, 140, 142, 144
V
Valens,