Suqainah, 228
   Sura, 348, 366, 369
   college of, 351, 367, 368
   Surayj, 280
   surgery, 245, 305, 612, 1000-1001, 1084
   Surkh Alam, 209
   surnames, 821
   sursum corda, 749
   Survey of Persian Art (ed. Pope), 270*
   Susa, 136, 148
   Suso (mystic), 810
   suspension bridge, 621
   Suzdalia, 653, 654, 656
   Sverre, King of Norway, 762
   Sviatopolk, 655
   Sviatoslav, 448
   Swabia, 92, 444, 511, 661, 960, 1049
   Swabians, 510, 661, 665
   Sweden, 22, 490, 502, 505, 553, 619, 666, 882
   Swedes, 473, 483, 502, 507, 832
   Sweyn Forkbeard, 493, 502
   swords, Damascene, 275
   Swithin, St., 871
   Swithin’s day, St., 871*
   Switzerland, 384, 615, 663, 687
   Sylvester I, St., 50, 525
   Sylvester II, see Gerbert of Aurillac
   Sylvester III, 540
   symbolism, 808, 994, 1051-1052, 1066, 1067
   in logic, 980
   Symmachus, 23, 30, 31, 32, 34-35, 56, 65, 75, 78, 85, 86, 87, 99
   Symmachus the Younger, 99, 101
   synagogues, 285, 347, 348, 349, 374, 381, 382-384, 388, 711
   Synesius, 27, 61-62
   synod, 546, 1074
   Synthetic Philosophy (Spencer), 966
   Syracuse, 290, 424, 704
   Syria, 3, 19, 46, 49, 55, 60, 62, 107, 117, 118, 119, 128, 134, 135, 138, 143, 145, 146, 150, 151, 156*, 157, 158, 161, 162, 168, 187, 188-191, 192, 196, 200, 202, 206, 208, 218, 219, 224, 225, 230, 235, 238, 239, 241, 245, 258, 262, 263, 273, 276, 278, 282, 284, 285, 308, 310, 311, 312, 315, 317, 318, 341, 343, 348, 416, 424, 425, 430, 431, 439, 440, 442, 528, 530, 572, 586, 590, 592, 593, 607, 608, 609, 616, 654, 716, 798, 865, 874, 913, 984, 990
   Christian, 249, 596, 713
   Monophysite, 525
   Moslem, 366, 596
   Syrian desert, 146, 274
   Syrians, 140, 202, 216, 243, 292, 357, 432, 436, 619
   syphilis, 1002
   Tabari, Abu Jafar Muhammad al-, 144, 210, 238
   Tabaristan, 238, 243, 268
   Tabenne, 58
   Tabriz, 231
   Tacitus, 23*, 30, 31, 37, 76, 283, 466, 502, 515, 1080
   tacking, 615
   Tadmor, see Palmyra
   Tafi, Andrea, 852
   taftah, 278
   Tagaste, 64-66
   Tagliacozzo, battle oí, 726
   Tagus River, 621, 645, 702, 891
   Tahafut al-Filasifa (al-Ghazali), 332
   Tahir, 200, 202
   Taif, 165
   tales, 265, 320, 495, 504, 737, 744, 822, 840, 1018, 1022, 1033, 1042, 1045
   Talha, 191
   Talib, Abu, 162, 165
   Taliesin, 495
   “tallage,” 377-378
   Talmud, 179, 181, 184-186, 347-365, 367, 369, 371, 372, 374, 377, 381, 383, 386, 395, 396, 400-402, 406, 407, 409, 410, 411, 415, 417, 418
   Tancred, King of Sicily, 705
   Tancred of Hauteville, 589, 590, 591
   Tangier, 284, 307
   tannaim, 350, 351
   Tannhäuser, 1039
   tapestries, 432, 491, 835, 850-857
   Taq-i-Bustan, 149
   Taq-i-Kisra, 148-149
   Tara, 82, 84
   tariff, 634, 641, 718
   Tariq, 97, 291
   Tarragona (Tarraco), 37
   Cathedral, 891
   Tarsus, 13, 230, 436, 586
   Tashfin, Yusuf ibn, 307
   Tasrif, al- (Abulcasis), 305
   Tasso, Torquato, 589
   Tatars, 216, 443, 993
   Tauler, Johannes, 810
   Taurus Mts., 146, 590, 652
   taverns, 830, 837, 1054
   taxation, 282, 283, 289, 292, 297-298, 307, 347, 348, 359, 373, 374-375, 377, 382, 392, 425, 427, 436, 442, 480, 485, 513, 555-556 566, 638, 644, 650, 667, 673, 674, 679, 687, 695, 696, 699, 718, 766, 812-813, 815, 885, 893, 927
   Taysir (Avenzoar), 910
   Te Deum laudamus, 750
   teaching, 276, 350, 383, 465, 466, 757, 785, 802, 807, 846-847, 915, 916, 917, 918, 921-924, 949
   Tehran, 231, 246
   Telemachus, monk, 31
   telescope, 288, 925, 1012
   Tell, William, 687*
   tempera, 854
   Tempier, Etienne, 957-958
   Templars, 289, 597, 601-602, 610-611, 629, 680, 695, 697, 713, 815, 821, 1002
   Temple, Jerusalem, 41, 185, 347-348, 353, 356, 359, 384, 593, 607
   Temple Church, London, 681
   Ten Treatises on the Eye (Hunain ibn Ishaq), 246
   tenants, 552, 676, 786
   Tennyson, Alfred, 81, 1052
   Terence, 515
   Tertullian, 46, 69, 78, 533
   “Testament” (St. Francis), 799
   Testry, battle of, 461
   tetanus, 1001
   Tetragrammaton, 354, 416, 417
   Teutonic Knights, 593, 610, 659, 893, 715
   Tewkesbury Abbey, 871
   textiles, 149-150, 207, 278, 285, 287, 318, 375-376, 436, 440, 613, 623-625, 728, 846, 850, 886, 906
   texts, corrupt, 828, 844
   Thabit ibn Qurra, 241
   Thaïs (Anatole France), 60
   Thames River, 483, 487, 493, 617, 676, 681, 924
   thanes, 486, 666
   Theater of Marcellus, Rome, 149
   Thebes, 369, 436, 624
   theft, 360, 569, 829-830
   theists, 331
   themes of Byzantine Empire, 433-434
   Themistius, 11, 123, 337
   Theobald, 670, 951
   Theodahad, 102, 109
   Theodemir, 97
   Theodora, Byzantine Empress (1042-1050; 1055-1056), 430, 431, 438
   Theodora, wife of Justinian I, 105, 106-107, 108, 115, 116, 120, 130, 131, 132, 827
   Theodora, wife of Theophilus, 428, 528
   Theodora, wife of Theophylact, 538
   Theodore, Archbishop of Canterbury, St., 806
   Theodore I Lascaris, 651
   Theodore II Lascaris, 652
   Theodore of Mopsuestia, 48
   Theodore, Abbot of Studion, 527-528
   Theodoret, 20*
   Theodoric, King of the Franks, 92
   Theodoric I, King of the Goths, 42, 97, 98, 99-101, 110-111, 132, 349, 451, 464
   Theodoric I, King of the Visigoths, 40
   Theodoric II, King of the Visigoths, 95
   Theodoric of Chartres, 878, 950
   Theodosian Code, 103, 111, 387
   Theodosius I the Great, 9, 25-26, 27, 35, 56, 62, 63, 127, 230, 501
   Theodosius II, 39, 49, 121, 123, 124, 126, 348
   Theodosius III, 425
   Theodulf, 466, 467, 468, 470, 536
   Theologia Christiana (Abélard), 941
   theology, 236, 264, 276, 278, 281, 288, 301, 305, 307, 314, 323, 331-332, 335, 336, 337, 338, 395, 401, 405, 414, 434, 437-438, 442, 470, 476, 497, 525, 527, 528, 530, 736, 777, 820, 821, 867, 913, 919, 920, 923, 924, 935, 940, 941, 953, 955, 958, 964, 966, 978, 979, 981, 982, 986, 989, 1000, 1008-1009, 1015, 1016, 1022, 1067, 1073, 1078, 1080
   Catharist, 771-772
   Catholic, 353*, 733, 953, 978
   Christian, 124, 300, 332, 477, 820, 949, 961, 1068
   of Gregory I, 523-524
   Shi’ite, 288
   Jewish, 353-356, 359, 368, 402, 405, 415
   of Justinian, 115-116
   orthodox, 294, 338, 959
   schools of, 311, 808, 923
   treatises on, 429, 521
   Theology of Aristotle, 240, 251, 253
   Theon, 122
   Theophanes, 425, 437, 439, 854
   Theophano, wife of Otto II, 512, 857
   Theophano, wife of Romanus II, 429-430
   Theophilus, 61, 62, 64, 283, 429, 432, 438, 439, 847, 848, 854, 856, 907
   Theophrastus, 329, 994, 1005
   Theophylact, 
					     					 			 538
   Therasia, 56
   Theresa, Countess of Portugal, 701-702
   theriacum, 999
   Thesaurus pauperum (Petrus Hispanus), 999
   Thessalonica, see Salonika
   Thessaly, 39, 319, 434, 453
   Theutberga, Queen, 526
   Thomas de Cormont. 881
   Thomas of Cantimpré, 1015
   Thomas of Celano, 751, 821, 897*
   Thomas à Kempis, 74
   Thomas of Walsingham, 681
   Thomas of York, 925
   Thomism, 977-978
   Thompson, James Westfall, 786*, 759*
   Thor, 503, 507
   Thorgest, 500
   Thorwald, 504
   thought, 334, 338, 919, 934, 975, 978, 980, 1015, 1084
   Christian, 418, 954
   free, 955-958, 1086
   Greek, 400, 953, 954
   heretical, 809
   Islamic, 235-281, 333, 338, 405, 910, 953, 961, 984
   Jewish, 405, 1006
   medieval, 244, 1084
   modern, 983, 1015
   mystical, 809
   religious, 332
   Thousand and One Nights, 198, 199, 217, 262, 263, 264, 320
   Thrace, 3, 24-25, 39, 46, 116, 118, 369, 425, 428, 434, 443, 604, 657
   Three Chapters (Justinian), 115-116
   Thuringia, 92, 444, 510, 511, 535, 663
   Tiber River, 54, 290, 456, 645, 708
   Tiberias, 230, 347, 414, 597
   Tiberius, 423, 641
   Tibullus, 466, 1085
   Tiepoli family, 628
   Tiflis, 191, 324
   Tigris River, 19, 136, 143, 152, 201, 206-207, 231, 232, 233, 234, 310, 330, 616
   tiles, 272, 274, 275, 287, 303, 317, 624
   tillage, 485, 505, 560, 786
   Timaeus (Plato), 240, 949, 965
   Tinchebrai, battle of, 571, 669
   Tipperary, 500
   tithes, 556, 564, 668, 683, 763, 765, 832, 845
   Titus, 41, 347
   “Toledan Tables” (al-Zarqali), 305
   Toledo, 95, 97, 293, 296, 299, 304, 306, 343, 372, 383, 397, 398, 400, 407, 415, 460, 528, 623, 638, 892, 909, 911, 919
   Cathedral, 891, 893, 897, 909
   Council of, 370, 387
   tolerance, 218-219, 292, 333, 341, 372-373, 400, 772, 776, 777, 784, 974, 979
   tolls, 465, 614, 640, 676, 718
   tombs, 861, 876, 885, 1085
   Topics (Aristotle), 912
   Topographia Christiana (Cosmas Indicopleustes), 134
   Topography (Gerald of Wales), 908
   Torah, 250, 350, 353, 354, 356, 359, 361, 368, 388, 410, 411, 416
   Torcello Cathedral, 851
   Torel, William, 861
   torture, 378, 391, 423, 427, 569, 680, 725, 765, 781-782, 784, 785, 830, 1083
   Tostig, 493, 494-495
   tosaphists, 401
   Totila, 110
   Toulouse, 36, 37, 85, 91, 393, 474, 480, 588, 697, 769, 771, 775, 776, 783, 803, 822, 922, 923, 1036, 1039
   Touraine, 688, 690
   Tournai, 37, 91, 476, 618, 623, 639, 640, 648
   Cathedral, 870
   tournaments, 562, 573-574, 576, 752, 780, 834, 839, 1037
   Tours, 57, 92-93, 292, 458, 461, 466, 474, 476, 479, 514, 586, 588, 638, 753, 766, 856, 914, 918, 932
   Cathedral, 857
   Tower of London, 681, 684, 893
   towers, 315-316, 859, 865, 868, 870-872, 877, 878, 883, 886, 888, 891, 892, 1085
   town halls, 844, 888
   tracery, 872, 875, 877
   Tractatus de erroribus medicorum (Roger Bacon), 1013
   Tractatus de sphaera (John of Holywood), 990
   trade, 119, 120, 298, 308, 343, 375, 432, 454, 485, 506, 514, 552, 560, 612-615, 618, 664, 686, 690, 703, 710, 712, 718, 728, 828, 845, 888, 975, 1084
   Arabian, 157
   Baltic, 619
   Byzantine, 436, 616
   Christian, 343
   English, 634, 669
   European, 617, 619
   Florentine, 728
   German, 618
   Islamic, 207-209
   Italian, 245, 614, 627
   Jews in, 376, 395
   Mediterranean, 603, 654, 1086
   monastic, 792
   Norwegian, 666
   river, 617-618
   routes, 118, 119, 120, 143, 156, 204, 376, 616
   Russian, 447-448
   Spanish, 373, 700
   trademark, 635-636
   Trajan, 14, 19, 33, 1078
   Trani, 370, 434
   Transcaspian region, 243
   transepts, 865, 870, 877, 882, 885
   transition style, 874, 876
   translations, 240-241, 342, 403, 405, 457, 476, 907, 909-913, 917* 949, 955, 989
   Transoxiana, 203, 204, 242, 273, 278, 308, 319, 339, 341, 369
   transport, 207, 450, 565, 617, 621
   transubstantiation, 735, 740-741, 763, 889, 955
   Transylvania, 659
   travel, 207, 379, 387, 404, 616-619, 621-622, 839, 994
   Travels (Marco Polo), 242
   Trdat, 205
   treason, 428, 431, 683, 776, 779
   treasuries, 318, 813, 850, 893, 996
   Treatise on Laws (Glanville), 678
   Treatise on the [Earthly] Sphere (Sacrobosco), 990
   Treatise on Love and Its Cure (Capellanus), 577
   Treatise on Smallpox and Measles (al-Razi), 247
   Trebizond, 145, 617, 651, 993
   Tree of Jesse, 880
   Trent, Council of, 741, 824, 978
   Tresor (Brunetto), 1015-1016, 1058
   Treviso, 662, 708, 722-723
   March of, 712
   trial, 89-90, 114, 927, 945
   by combat, 464, 568, 691, 718, 829, 839, 844
   by duel, 531
   by evidence, 691
   by jury, 448, 677
   by ordeal, 341, 531, 567-568, 718, 721, 779, 844
   tribes, 157, 424, 431, 445, 465, 497, 653
   Tribonian, 111-112
   tribunals, 668, 679
   tribunes, 454, 707, 729
   Tribur, 549
   tribute, 296, 306, 459, 460, 474, 500, 656, 682, 702, 760
   Trier, 31, 37, 40, 47, 51, 55, 57, 85, 390, 474, 476, 514, 516, 640, 686
   Cathedral, 870
   triforium, 867, 872, 873, 877, 884, 885
   trigonometry, 241, 242, 328, 911, 991
   Trinitarians, order of, 792
   Trinity, 8, 57, 61, 68, 99, 100, 107, 112, 354, 417, 442*, 478, 746, 771, 907, 932, 940, 941, 946, 951, 964, 967, 980, 985, 1009, 1066, 1067
   Tripoli, 230, 316, 703
   mosques of, 286
   Tripolis, 592, 596, 598
   Tristan, 1048-1049, 1070
   Tristan (Chrétien), 1045
   Tristram, 575, 1019, 1045
   trivium, 99, 915
   Trnovo, 657
   Troilus and Cressida (Shakespeare), 1045
   Trojans, 1019, 1044
   “tropes,” 897, 1028
   Trosle, synod at, 475
   Trotula on the Cure of Diseases of Women, 998
   troubadours, 264, 306, 342, 563, 576, 578, 672, 697, 701, 702, 711, 731, 767, 771, 772, 776, 793, 826, 828, 901, 904, 905, 949, 1016, 1020, 1036-1039 1042, 1054, 1056-1059, 1068, 1085, 1086
   trouvères, 563, 697, 828, 1020, 1042, 1044, 1045, 1054, 1055, 1058
   trovatori, 901, 1042, 1066
   Troyes, 40, 41, 401, 615, 618, 623, 643, 941, 1045
   fairs of, 395
   Truce of God, 513, 572, 614, 755
   True Cross, 147, 151, 597, 599, 607, 694, 743, 744
   Tsüan Tsung, 198
   Tuathal, 82
   tuberculosis, 330, 1002
   Tughril Beg, 204, 308, 312, 317
   Tulun, Ahmad ibn, 210, 284
   mosque of ibn, 273, 286, 287, 874
   tumors, 330
   Tunis, 202, 208, 230, 282, 283, 316, 703, 909, 980
   mosques of, 273-274, 286
   Tunisia, 109, 273, 284, 290, 314, 606, 608, 617, 692, 694, 703, 705, 
					     					 			 980
   Turin, 712, 722
   Turkestan, 150, 196, 203, 204, 209, 211, 253, 366, 443, 447, 616, 655
   Turkey, 367, 652, 874
   Turks, 131*, 146, 152, 202, 203, 209, 216, 252, 269, 270, 285, 311, 317, 328, 389, 393, 431, 586, 589, 591, 605-606, 608, 610, 650, 652, 657, 817
   Khwarazmian, 607
   Seljuq, 204, 276, 585, 586, 590
   Turpin, Archbishop, 1030, 1031
   Turshiz, mosque of, 274
   Tus, 200, 268, 269, 319, 331
   Tuscan League, 756
   Tuscany, 538, 545, 578, 638, 726, 730, 761, 788*, 813, 847, 892, 959, 1056, 1057
   Tusculum, counts of, 540
   Twenty Books of Etymologies or Origins (Isidore of Seville), 96
   Two Sicilies, 703, 715, 717, 726, 761, 908
   Tyconius, 73
   tyranny, 464, 648, 724, 817, 819, 858
   Tyre, 7, 207, 229, 278, 375, 399, 592, 598, 600, 601, 609, 710
   Ubaldini, Cardinal, 956
   Ukaz, 157, 158, 159, 161
   Ukraine, 24, 444, 447, 654
   Ulfilas, 46-47
   Ulrich von Lichtenstein, 1041-1042
   Ulster, 82, 496, 498, 682
   Umayya, 162, 166
   Umayyads, 191, 192-196, 217, 218, 219, 225, 228, 230, 231, 239, 240, 276, 280, 292, 297
   Umbria, 708, 798, 799
   Unam sanctam (Boniface VIII), 814
   unemployment, 296, 654
   unicorn, 994
   United States, 85, 90*, 120, 208*
   universe, 337, 353*, 354, 406, 477, 844, 964, 1016
   Universal History (Eunapius), 125
   Universal History (Orosius), 484
   universals, 931-933, 938, 981, 1013
   universitas, 920
   universities, 124, 415, 642, 697, 755, 765, 803, 818, 822, 841, 882, 903, 908, 912, 916-919, 926, 930, 949, 987, 988, 1013, 1018, 1024, 1084, 1086
   Christian, 335, 404
   French, 940
   German, 920, 1025
   Moslem, 121, 287-288, 336
   in Spain, 701
   Unter den Linden (Wolfram), 1040
   upper classes, 234, 440, 706, 778, 805, 832, 836, 1042
   Uppsala, 502, 659, 903
   Urals, 447, 655
   Urban II, Blessed, 183, 389, 546, 586-588, 589. 688, 740, 817
   Urban IV, 725-726, 728, 752, 889, 954
   urinalysis, 247, 998-999
   Ursinus, 50
   Usaybia, ibn Abi, 319
   usurers, 377, 392, 627-628, 630, 631, 632, 755, 975, 1065, 1072
   Utrecht, 534, 686
   Valencia, 296, 298, 304, 315, 373, 460, 617, 624, 638, 697, 698, 699, 892, 1000
   Valenciennes, 463, 476, 618
   Valens, 24-25, 31, 62, 123
   Valentinian I, 29, 34, 77, 86, 123
   Valentinian II, 25-26, 35, 127
   Valentinian III, 37, 38, 39-40, 41, 50, 56
   Valerian, 143
   Valerius, Bishop of Hippo, 67
   Valhalla, 507, 508, 510
   Valkyries, 507-508
   Valla, Lorenzo, 526*
   Valladolid, 919
   Cortes of, 375
   Vallejo, Juan de, 891
   Vallombrosa, order of, 787