On 15 August 1971, Bahrain declared independence from British rule following a United Nations poll of Bahraini citizens. However, the country doesn't celebrate the date and instead marks December 16 as National Day.
The Republic of the Congo, also called Congo-Brazzaville, gained freedom on 15 August 1960, after being under French rule for 80 years.
Both North and South Korea attained their freedom from the Japanese on 15 August 1945. They annually celebrate the day as National Liberation Day of Korea.
A small country in Europe, Liechtenstein gained independence from German rule on 15 August 1866. However, the day was not officially declared as its freedom day until 1940.