Islam spread through military conquest, trade, pilgrimage, and missionaries.
Arab Muslim forces conquered vast territories and built imperial structures over time.
Most of the significant expansion occurred during the reign of the Rashidun from 632 to 661 CE, which was the reign of the first four successors of Muhammad.
The caliphate—a new Islamic political structure—evolved and became more sophisticated during the Umayyad and Abbasid caliphates.
Growing overseas trade, economic prosperity, and a climate for progress affected<span> the working class.
</span>Cities grew speedily<span>, </span>therefore there have been<span> no development plans, </span>healthful<span> codes, or building codes. It </span>cause<span> inadequate housing, education and </span>enforcement<span>. Garbage </span>heaped within the<span> streets. F</span>olks<span> lived in </span>shut<span> quarters and caused diseases to </span>unfold faster<span>. T</span>he typical lifetime<span> in urban areas was </span>seventeen<span> (38 in rural areas).</span>
freedom of religion, freedom of speech, freedom of the press
