Gibraltar National Day is the official national day of the British overseas territory of Gibraltar and is observed every year on September 10. The referendum of 1967, in which the citizens of Gibraltar overwhelmingly voted to remain under British sovereignty, is celebrated annually on this day.
Swaziland Independence Day

Swaziland Independence Day is a national holiday held every year on September 6. It is the official holiday that celebrates Swaziland gaining its independence from Britain in 1968. Britain had ruled over the nation since the year 1903. The holiday is an opportunity for people to celebrate and appreciate their freedom. The day is named after King Sobhuza I (Ngwane IV) who ruled between 1805 and 1839. The people nicknamed him ‘Somhlolo,’ which means ‘Wonder.’ The king is considered the founder of Swaziland. There are local celebrations held around the country during the holiday. There is a lot of traditional singing and dancing.
Merchant Navy Day

Merchant Navy Day is observed annually on September 3. In recognition of their sacrifice in World War I, King George V bestowed the title of Merchant Navy on British merchant seafarers. They are often regarded as the forgotten and invisible navy community. Modern-day merchant seafarers are responsible for the U.K.’s imports, including food and other daily products and goods. On this day, the Red Ensign is flown across the country to honor the brave men and women of the Merchant Navy.