Nejd

Existed: 1744 - 22 September 1932
Status: Independent nation
Capital: Riyadh
Where: Arabian Peninsula
Now: Incorporated into Saudi Arabia

In 1744, the state of Nejd was formed by Muhammad bin Saud and Muhammad ibn Abd Wahhab in central Arabia.
For most of the 19th century, Nejd was ruled either by Egypt or the Ottoman Empire.
From 1891, Nejd was ruled by the al Rashid dynasty, based in Jebel Shammar.
On 15th January 1902, Riyadh was captured by Abdul Aziz Ibn Saud and the Emirate of Nejd was founded.
In May 1913, al Hasa (part of the Ottoman Empire) was incorporated into Nejd.
On 22nd August 1921, the country was renamed the Sultanate of Nejd and its Dependencies.
On 2nd November 1921, Jebel Shammar was incorporated into Nejd.
On 8th January 1926, Hejaz was unofficially annexed by Nejd.
On 29th January 1927, the country was renamed the Kingdom of Nejd and its Dependencies.
On 22nd September 1932, Nejd and Hejaz were unified as the Kingdom of Saudi Arabia.

The flag above has been taken from Roberto Breschi's Bandiere website at http://www.rbvex.it/index.html.