About Iran : The word 'Iran' came from the word Aryanam, which means the 'Land of the Aryans'. The history the nation Iran is started around 4000 B.C. and is the home to one of the oldest and continuous major civilizations in the world. The Iranian history made a turning point during the Islamic conquest of Persia and the end of the Sassanid Empire. On 1st April, 1979 the Iran was officially became an Islamic Republic.