humor, 786, 838, 934, 1029, 1055, 1067
Hunain ibn Ishaq, 240, 246, 910, 911
Hundred Years’ War, 90, 565, 882, 894
Huneric, 41
Hungary, 37, 38, 43, 387, 444-445, 513, 535, 537, 603, 607, 612, 622, 658-659, 663, 664, 760, 762, 801, 810, 864, 892, 903
Huns, 4, 24, 25, 26, 36, 38-41, 80, 339, 443, 445, 446, 579, 614, 659, 906, 1035
Kotrigur, 116
White, 144
Hunt, Leigh, 261
hunting, 505, 666, 691, 720, 786, 840, 1005
husbandry, 702, 925, 1005
Husein, son of Ali, 193, 217, 228, 252
Hushiel, Rabbi, 269
Husri, 307
Huss, John, 74, 784, 1082
hydromancy, 987
hygiene, 356, 409, 807, 835, 1001, 1003
“Hymn to a King’s Son,” (Julian), 15
hymns, 264, 384, 476, 749-751, 895, 896, 1026, 1027, 1085, 1086
Hypatia, 61, 62, 122-123, 125, 319
Hypatius, 105-106
Hywel the Good, 496
Iacobus de Mandra, 916, 918
Iacopo d’Alemannia, 888
Iacopo da Lentino, 1056
Iacopo de Vorágine, 1022
Iamblichus, 9
Iblis, 177, 1068
Ibrahim ibn al-Mahdi, 280
Ibrahim, son of Mohammed, 172
Ibrahim, son of Walid I, 195
Iceland, 81, 447, 497, 502, 504, 506, 507, 508, 509, 510, 666, 899, 1031-1036
iconography, Byzantine, 134
Iconoclasts, 425-427, 437, 439, 441, 528, 845, 846, 853, 858
Id al-Fitr, 215
Ideal City (al-Farabi), 253
idolatry, 261, 270, 274, 410, 732
Idrisi, 229, 230, 329, 703, 704
Ifriqiya, 283, 285
ignorance, 96, 442, 470, 579, 1015, 1083
Île de France, 480-481, 869, 876, 882
Iliad (Homer), 134, 269, 270, 1081
illiteracy, 465, 578, 788, 801, 908
Illuminati, 289
illumination, 133-134, 277, 278, 466, 492, 499, 501, 853
Illyricum, 3, 86, 446
images, 356, 425-428, 467, 524, 527, 528, 531, 769, 846, 858
Imago mundi (Pierre d’Ailly), 1010
imam, 213
Imans, 217, 261, 265, 284
Immaculate Conception, 747, 973*
immigration, 371, 446, 660, 683
immorality, 547, 764, 784, 806, 946
immortality, 324, 331, 332, 355, 407, 413, 415, 478, 954-955, 959, 964*, 971, 981, 1057, 1068
immunities, clerical, 671, 927
imprisonment, 113-114, 393, 431, 473, 568, 676, 722, 777, 781, 782, 783
Imru’lqais, 159
In Praise of Baldness (Synesius), 61
In Praise of the Blessed Virgin Mary (Albertus Magnus), 961
incantations, 416, 417, 742, 985
Incarnation, 735, 933, 964, 980, 1069
incest, 416, 528, 822, 824
income, 465, 765, 767, 813
incontinence, 460, 541, 1075, 1076
incubation, artificial, 994
independence, 293, 472, 637, 699, 701
Index of Forbidden Books, 163
Index of the Sciences (al-Nadim), 238
India, 49, 108, 118, 119, 134, 138, 140, 143, 145, 150, 156, 157, 161, 203, 204, 206, 208, 219, 230, 231*, 238, 241, 242, 243, 244, 245, 258, 270, 271, 272, 273, 279, 282, 285, 310, 326, 343, 376, 397, 542, 616, 910, 989, 992, 1010, 1054, 1082
north, 156*
northwest, 196
India (al-Biruni), 242
Indian Ocean, 119, 283, 404
individualism, 195, 365, 810, 854
individuation, principle of, 968-969, 977, 981
“Indo-European” peoples, 156*
inductive method, 981
indulgences, 611-612, 621, 739-740, 753, 760, 764, 767, 774, 784, 863, 945
Indus River, 144, 196, 244, 339
Industrial Revolution, 560, 637
industry, 298, 308, 315, 371, 375, 429, 432, 445, 454, 456, 487, 552, 560, 565, 621-625, 642, 649, 652, 685, 686, 696, 710, 712, 731, 767, 816, 845, 915, 949, 975, 976, 1015
Aragonese, 701
Byzantine, 435, 436
English, 669
Flemish, 613
of Florence, 728
Islamic, 207
Italian, 613
of monks, 753
Persian, 140
socialistic, 792
treatise on, 359
Venetian, 710
Ine, King, 634
Ineffabilis amor (Boniface VIII), 813
infanticide, 76-77, 180, 504, 505, 824, 844
infection, 357, 1001, 1003
Inferno (Dante), 1067, 1068, 1076
infinity, 977
inflections, 903-904
Ingeborg, wife of Philip II, 689
Ingelheim, 466, 473, 476
inks, 906
colored, 852
inlay, 287, 848, 849, 908
Innocent I, St., 69-70
Innocent II, 702, 707, 756, 760, 791, 946-947
Innocent III, 74, 377, 388, 469, 541, 546, 551, 567, 568, 602, 603, 604, 605, 606, 617, 631, 632, 659, 674, 675, 677, 689, 698, 708, 714-715, 716, 758, 759, 761-764, 767, 770, 771, 773, 774, 775, 777, 778, 779, 792, 793, 798, 799, 801, 805, 806, 808, 811, 817, 825, 843, 897*, 920, 955, 1002, 1085
Innocent IV, 388, 607, 608, 612, 632, 652, 658, 723-725, 759, 765, 781, 817, 850, 919, 925, 993
Inns of Court, 924
Inquisition, 388, 402, 410, 416, 676, 680, 692, 721, 755, 764, 765, 769-784, 785, 802, 803, 816, 956, 958, 986, 988, 1000, 1083
insane, 330, 1002
Institutes (Justinian), 699
Institutiones (Tribonian et al.), 112
Institutiones divinarum (Cassiodorus), 99
instruments, 901, 1008, 1010
astronomical, 305, 991
musical, 279-280, 342, 499, 901
surgical, 1001
insurance, 629, 635
disability, 766
intarsia, 849
interdict, 639, 671, 675, 689, 707, 716, 723, 727, 755-756, 762, 763, 774, 812
interest, 436
forbidden, 377, 378, 631
on loans, 627, 628, 630-633, 975
rates, 120, 385, 632
remission of, 377
intestines, burning of, 1003
intolerance, 373, 387, 784, 1083
intoxication, 323, 837
intubation, 1001
Introduction to the Categories of Aristotle (Porphyry), 99
Introduction to the History of Science (Sarton), 239*
invasions, 290, 293, 456, 492, 560, 579, 775, 843, 913
Anglo-Saxon, 533
barbarian, 444, 453, 510, 633, 727, 728, 854, 895, 984
of Britain, 501
Danish, 483, 486, 492
Germanic, 497, 499, 532, 552
Lombard, 451, 453, 520
Mongol, 653, 654, 657, 658, 1003
Moslem, 458
Norman, 472, 552, 626
Pict, 501
inventions, 1010, 1015
investiture, 513-514, 546-548, 564, 661, 760, 551
Iona, 499, 532, 534
Ionic order, 128, 129
Iran, see Persia
Iraq, 136, 152, 157, 188, 191, 192, 207, 210, 226, 227, 232, 317, 348, 366, 397
Ireland, 80, 81, 82-84, 89, 447, 465, 466, 473, 493, 495, 496-501, 502, 510, 534, 670, 675, 681-683, 735, 748, 761, 832, 841, 984, 992
Irene, Empress, 197, 198, 200, 427, 827
Irnerius, 630, 754, 916
iron, 847, 848
irrigation, 202, 206, 646
Isa, Ali ibn, 246
Isaac I Comnenus, 431
Isaac II Angelus, 603, 604
Isaac the Blind, 417
Isaac ibn Ezra, 397, 398
Isaac Israeli, 403, 405, 911, 963, 1006
Isaac Judaeus, 910
Isaac ben Meir, 401
Isaac ben Mordecai, 404
Isaac of Cordova, St., 301
Isaac of Syria, St., 62
Isaiah, 176, 965
Book of, 398
Isabel of Gloucester, 674
Isabel, St., Queen of Portugal, 702
Isabella II, Queen of Spain, 315
Isabella of Angoulême, 674
Isabella, wife of Frederick II, 719
Isabella, wife of Philip II, 687
Isabelle, wife of Edward II, 90
Isbahan ibn Qara, 331
Isauria, 425
Iseult, 1049
Isfahan, 148, 203, 232, 248, 263, 294, 309, 312, 384, 385
Isfahani, al-, 263, 294
Ishaq, Hunain ibn, 240, 246, 910, 911
Ishaq, son of al-Mawsili, 280
Ishaq, Muhammad ibn, 163, 237
Isidore, architect, 130, 131*
Isidore of Seville, 95-96, 738, 907, 1077