The history of Saudi Arabia as a nation state began with the emergence of the Al Saud dynasty in central Arabia in 1727 and the subsequent establishment of the Emirate of Diriyah. Pre-Islamic Arabia, the territory that constitutes modern Saudi Arabia, was the site of several ancient cultures and civilizations; the prehistory of Saudi Arabia shows some of the earliest traces of human activity in the world.
Najd is the geographic center of Saudi Arabia, accounting for about a third of the country's modern population. It is the home of the House of Saud, from which they pursued unification with Hejaz under Saudi rule since the time of the Emirate of Diriyah.
Abdulaziz bin Abdul Rahman Al Saud, known in the West as Ibn Saud, was an Arab political and religious leader who founded Saudi Arabia – the third Saudi state – and reigned as its first king from 23 September 1932 until his death in 1953. He had ruled parts of the kingdom since 1902, having previously been Emir, Sultan, and King of Nejd, and King of Hejaz.
The Ikhwan, commonly known as Ikhwan man ata'a Allah, was a religious militia made up of traditionally nomadic tribesmen which formed a significant military force of the ruler Ibn Saud and played an important role in establishing him as ruler of most of the Arabian Peninsula in the Kingdom of Saudi Arabia.
Al-Mutairi is an Arab tribe with origins in the northern Hejaz near Medina, in present day Saudi Arabia. The tribe mainly inhabits Saudi Arabia (Najd), Kuwait, Iraq, UAE, and all arabian peninsula countries. They have also settled in Morocco and Tunisia.
Al-Ajman or al-'Ijman is an Arabian tribal confederation in the Arabian Peninsula, with Ajman spread across Saudi Arabia, Qatar, the United Arab Emirates and Kuwait.
Faisal bin Sultan al-Duwaish was Prince of the Mutair tribe and one of Arabia's Ikhwan leaders, who assisted Abdulaziz in the unification of Saudi Arabia. The mother of Faisal bin Sultan was from the Ajman tribe and the sister of Dhaydan bin Hithlain, another Ikhwan leader and sheikh of the Ajman tribe.
The Unification of Saudi Arabia was a military and political campaign in which the various tribes, sheikhdoms, city-states, emirates, and kingdoms of most of the central Arabian Peninsula were conquered by the House of Saud, or Al Saud. Unification started in 1902 and continued until 1932, when the Kingdom of Saudi Arabia was proclaimed under the leadership of Abdulaziz, known in the West as Ibn Saud, creating what is sometimes referred to as the Third Saudi State, to differentiate it from the Emirate of Diriyah, the First Saudi State and the Emirate of Nejd, the Second Saudi State, also House of Saud states.
Sultan bin Bajad bin Humaid al-'Utaybi was the Sheikh of the Otaibah tribe and one of the prominent leaders of the Ikhwan movement in the Arabian Peninsula. This tribal army supported King Abdulaziz in his efforts to unify Saudi Arabia between 1910 and 1927.
The Battle of Sabilla was the main battle of the Ikhwan Revolt in northern Arabia between the rebellious Ikhwan forces and the army of Abdulaziz al-Saud. It is the last tribal uprising in Arabia. It was also the last major battle in which one side rode camels, as the Ikhwan emphasized radical conservatism and shunned technological modernization.
Ikhwan raids on Transjordan were a series of attacks by the Ikhwan, irregular Arab tribesmen of Najd, on Transjordan between 1922 and 1924. The repeated Wahhabi incursions from Najd into southern parts of his territory were the most serious threat to emir Abdullah's position in Transjordan. The emir was powerless to repel those raids by himself, thus the British maintained a military base, with a small air force, at Marka, close to Amman. The British military force was the primary obstacle against the Ikhwan, helping Emir Abdullah to secure his rule over Transjordan.
The Battle of Jabal Shammar, or Battle of Umm Radh'ma, took place on August 1929, between a raiding rebellious Ikhwan party and the ally tribes of Ibn Saud. It was the second large scale engagement of the Ikhwan Revolt in Arabia. The rebel Ikhwan tribesmen were defeated by the loyal pro-Saudi forces.
The Ikhwan raid on Busayya in Iraq occurred on 5 November 1927. Elements of the Ikhwan, mainly consisting of the Mutayr tribe under Faisal al-Duwaish, raided southern Iraq, clashing with Iraqi troops near Al Busayya This attack later became known as the beginning of the Ikhwan rebellion.
Az Zulfi is a city in Riyadh Province in central Saudi Arabia, about 260 kilometres northwest of Riyadh. It is connected by Roads 418 and 535 which both link with the main Highway 65 which connects Riyadh to Buraidah which is about 101 kilometres by road to west of Al Zulfi. Zulfi also forms a governorate of Riyadh Province. The Al-Yamama/Tuwaiq mountain range begins in the desert to the north of Al Zulfi.
The Saudi conquest of Hejaz or the Second Saudi-Hashemite War, also known as the Hejaz-Nejd War, was a campaign engaged by Saudi Sultan Abdulaziz to take over the Hashemite Kingdom of Hejaz in 1924–25, ending with conquest and incorporation of Hejaz into the Saudi domain.
The First Saudi–Hashemite War, also known as the First Nejd–Hejaz War or the al-Khurma dispute, took place in 1918–19 between Abdulaziz Ibn Saud of the Emirate of Nejd and Hasa and the Hashemites of the Kingdom of Hejaz.
The Ottoman era in the history of Arabia lasted from 1517 to 1918. The Ottoman degree of control over these lands varied over these four centuries, with the fluctuating strength or weakness of the Empire's central authority.
Dhaydan bin Hithlain was one of the leaders of the Ajman tribe and Amir of the hijrah (settlement) of Al Sarrar. His full name was Dhaydan bin Khalid bin Hizam bin Hithlain. Alexei Vassiliev also calls him Zaidan.
The Battle of Turubah was fought on May 26, 1924, between the forces of Hussein bin Ali, under the command of his son Abdullah bin Al-Hussein, and forces under the command of Abdulaziz bin Abdul Rahman Al Saud. It was a larger part of the Hejaz-Nejd War, as well as the Al-Khurma dispute. The battle resulted in the end of Hussein's hopes to expand into the Arabian peninsula, as well as opening the way for Ibn Saud to fortify his own control over the region, which in turn would eventually lead to the creation of Saudi Arabia.
The Declaration of theUnification of Saudi Arabia was officially announced by Prince Faisal bin Abdulaziz, the Viceroy of Hejaz on behalf of King Abdulaziz ibn Saud on September 23, 1932, at 9:00 am from al-Hamidiyah Palace in Mecca. Faisal read out the Royal Decree No. 2716 issued by Abdulaziz ibn Saud on September 18, 1932, that renamed the Kingdom of Hejaz and Nejd and its annexes as the Kingdom of Saudi Arabia.
Faisal bin Sultan 
Abdulaziz al-Saud 
Faisal I 
Ahmad Al-Jaber Al-Sabah 
