Omar, described, 2, 275, 283, 4, 6, 9, 18, 28 _note_; angry with Khâlid, 34, 46, 90; mourns for his brother Zeid, 45, 50; frees all Arab slaves, 64; judge, 65; deposes Khâlid, 111, 114; accession to Caliphate, 125, 132; orders new levies, 133, 156; receives tidings of victory at Câdesîya, 177; weeps at seeing spoil, 189; forbids advance on Persia, 189, 203, 249; visits Jerusalem, 207 _et seq._; journeys to Jâbia, 216; arraigns Khâlid, 219; his Dewân, 225; compiles Corân, 231; administration of famine, 232; in the plague, 234; progress through Syria, 236; entertained by a bishop, 236; performs pilgrimage, 238; conquers Egypt, 239 _et seq._; letter to the Nile, 246; releases Hormuzân, 253; pressed to allow advance on Persia, 255; sends army against Persia, 256; miraculous interposition of, to save Saria, 261; enlarges square at Mecca, 263; dread of naval enterprise, 264; acquits Abu Mûsa, 267; establishes era of Hegira, 271; simplicity, 273; marries Omm Kolthûm, 276; last pilgrimage, 278; assassination, 280; appoints Electors, 280; death, 283; burial, 285, 286, 306, 456 Omeyyad, _Beni_, 294, 316; dynasty, 443, 446; in Spain, 449 Omm al Banîn, 315 Omm al Fâdhl, widow of Abbâs, 355 Omm Ayman, 65 Omm Farwa, 58, 120 Omm Habîba, 336 Omm Keis, 152 Omm Kirfa, 27 Omm Kolthûm, 203; Omar’s wife, 276, 413, 415 Omm Salma, 55 Omm Siml, 27 Omm Walad, 265, 272 Omra, or Lesser Pilgrimage, 329 Ordinances of Omar, 212, 452 Ordonna (Jordan), 153, 205 Orontes, 199, 203 Orthodoxy, intolerant, 455 Orwa, 318 Osâma, expedition, 8 _et seq._, 16, 325 Otba, 191, 249, 251, 264 Othmân, 275; appointed Elector, 280; elected Caliph, 291, 294; appoints Abu Sarh over Egypt, 298; outlook darkens, 302; recension of Corân, 307; palace, 309; puts down unlawful amusements, 311; enlarges square of Káaba, 312; embellishes Mosque at Medîna, 312; alters rites of pilgrimage, 313; loses Prophet’s ring, 314; sinks wells, 314; marries Nâila, 315; gives in to Kûfa, 320; Aly expostulates with him, 321; appeals to the people, 322; last pilgrimage, 323; contumeliously treated, 324; complaints invited, 325; conference with governors, 326; attacked by regicides, 329 _et seq._; addresses them, 335; blockade, 337; slain, 339; character, 341; bloody shirt hung up at Damascus, 348, 374, 376 Othmân ibn al Aás, 52 Othmân ibn Honeif (_see_ Ibn Honeif) Oxus, 259, 296 Oyeina, 23, 25, 27, 28, 315 Palestine, 200, 205, 211 Paradise, 105