National Day is a Public Holiday in November.
Oman’s National Day is on 18 November. National day celebrates the Omani independance from the Portugese in 1650. Coincidentally Sultan Qaboos bin Said's birthday falls on the 19th of November so Omanis celebrate the two days in a row. There are parades, fireworks, camel races and bullfights throughout the country. Many Omanis return to their home villages to celebrate, so the roads may be busier than usual.
The Omani people remained relatively independant from the tribes surrounding them, except from temporary pressure put on them by Iran and surrounding areas, until 1507. The Portugese took control over the ports in Muscat and Sohar in that year, using their naval tactics and technology. They managed to gain control over the rest of the coast in 1507 rendering Oman occupied. Oman was seen as a resourceful trading point along the Indian Spice route. The Portugese influence was finally weakened after the British East India Company signed a treaty with the Al-Ya'ribi clan allowing them legal and religious rights to operate in Oman's ports. This weakened Portugal's control over the region considerably allowing for a rebellion to be successful.
In 1650 on the 18th of November Imam Sultan bin Saif let a rebellion that successfully expelled the portugese from the Omani shores. Oman has been independent ever since.Oman is recognised as being the longest continuously independant state in the Arab region and continues to enjoy that independence.