Sharia law is the religious law of the entire Muslim world. It contains religious and practical rules that all Islamic believers must adhere to. It originated in the 7th century through the Prophet Muhammad. The main source of Sharia law is the holy book, the Quran, followed by the Sunna, which is the oral tradition based on Muhammad's life, and other sources: Ijma ul-ummah, Qiyas, Adat, and Er-rei. In addition to Sharia law, Islamic states also have kanun, or state law, which represents the common law for the entire population. The Islamic community split in 632, after Muhammad's death, into Sunnis and Shiites, and this division remains to this day. The Quran mandates that both men and women are equal, but from the inception of Islam to the present day, we witness significant differences between men and women. The only true role of a woman is to bear children and take care of the family, children, and especially the needs of her husband. Sharia law has not been fully accepted in European countries, although it is present in some countries and even obligatory in certain states. Because of this, there are significant conflicts in such states due to violations of human rights and fundamental freedoms, leading to disputes before the European Court of Human Rights.