Islam, the second-largest religion globally, is rooted in monotheism and guided by the Quran. Its core beliefs include the Five Pillars, prophets, and the afterlife, with a rich history spanning from Muhammad's revelations to vast empires. The religion has diverse branches, including Sunni, Shia, and Sufism, each with unique practices and interpretations. Islamic law, or Sharia, influences many aspects of Muslim life, while the faith's cultural impact extends to art, science, and global affairs.