Sasanian EmpireThe Sasanian Empire (səˈsɑːniən,_səˈseɪniən), officially known as Eranshahr ("Land/Empire of the Iranians"), was the last Iranian empire before the early Muslim conquests of the 7th–8th centuries AD. Named after the House of Sasan, it endured for over four centuries, from 224 to 651 AD, making it the longest-lived Persian imperial dynasty. The Sasanian Empire succeeded the Parthian Empire, and re-established the Persians as a major power in late antiquity alongside its neighbouring arch-rival, the Roman Empire (after 395 the Byzantine Empire).
KhaybarKhaybar (خَيْبَر, ˈxajbar) is an oasis situated some north of the city of Medina in the Medina Province of Saudi Arabia. Prior to the rise of Islam in the 7th century, the area had been inhabited by Arabian Jewish tribes until it fell to Muslim armies under Muhammad during the Battle of Khaybar in 628 CE. Before the advent of Islam in the 7th century CE, indigenous Arabs and Jews made up the population of Khaybar, but when Jewish settlement in northern Arabia began is unknown.
UmarInfobox royalty | name = ‘Umarعُمَر | title = | succession = 2nd Caliph of the Rashidun Caliphate | reign = 23 August 634 – 3 November 644 | image = 20131203 Istanbul 118.
Abu BakrAbū Bakr ʿAbd Allāh ibn ʿAbī Quḥāfa (; 27 October 573 – 23 August 634) was the senior companion and was, through his daughter Aisha, a father-in-law of the Islamic prophet Muhammad, as well as the first Caliph of the Rashidun Caliphate. He is known with the honorific title al-Siddiq by Sunni Muslims. Abu Bakr was born in 573 CE to Abu Quhafa and Umm Khayr. He belonged to the tribe of Banu Taym. In the Age of Ignorance, he was a monotheist and condemned idol-worshipping. As a wealthy trader, Abu Bakr used to free slaves.
MedinaMedina, officially Al-Madinah al-Munawwarah (المدينة المنورة, almadiːna almʊnawːara) and also commonly simplified as Madīnah or Madinah (المدينة, almadiːna), is the capital of Medina Province in the Hejaz region of western Saudi Arabia. One of the most sacred cities in Islam, the estimated population as of 2020 is 1,488,782, making it the fourth-most populous city in the country.
Umayyad dynastyThe Umayyad dynasty (Banū Umayya) or Umayyads (al-Umawiyyūn) was an Arab clan within the Quraysh tribe who were the ruling family of the Caliphate between 661 and 750 and later of al-Andalus between 756 and 1031. In the pre-Islamic period, they were a prominent clan of the Meccan tribe of Quraysh, descended from Umayya ibn Abd Shams. Despite staunch opposition to the Islamic prophet Muhammad, the Umayyads embraced Islam before the latter's death in 632.
