1848-1885 1944- antichrist biography digitalmedia endoftheworld(islam) history internet inthequrʼanjesuschrist iraq islam islamicsociology jihad judgmentday(islam) mahdism mahdī muḥammadaḥmad nuclearnonproliferation nuclearphysicists nuclearweapons obeidi qurʼanicteaching religiousaspects religiousmilitants secondadvent sudan