Independence Day in the United States, also known as the Fourth of July, is a federal holiday commemorating the adoption of the Declaration of Independence on July 4, 1776. On this day, the thirteen American colonies declared themselves independent from the British Empire. It's a day of significant historical importance and is celebrated with various activities across the country.

Unity Day in Zambia is a national public holiday immediately following Heroes’ Day. The holiday promotes national unity and peace, reinforcing the idea of Zambia as "One Zambia, One Nation".

Territory Day in Wallis and Futuna commemorates the day in 1961 when Wallis and Futuna officially became an overseas territory of France, establishing its current political status within the French Republic.

Independence Day marks the country's independence from joint British and French colonial rule in 1980. Formerly known as the New Hebrides, Vanuatu became a sovereign nation with Father Walter Lini as its first Prime Minister.

Revolution Day in Yemen commemorates the 1962 revolution in North Yemen that led to the overthrow of the Mutawakkilite Kingdom and the establishment of the Yemen Arab Republic.

Constitution Day in Vanuatu commemorates the adoption of the country's Constitution in 1979, a key step that laid the foundation for Vanuatu’s independence in 1980.

Fraternal Day is a holiday observed in the United States, particularly associated with Alabama, where it was originally established to promote unity and harmony among different organizations and people. The purpose was to foster goodwill and cooperation across racial, religious, and organizational lines.

Liberation Day in Yemen commemorates the start of the armed struggle against British colonial rule in South Yemen in 1963, leading to full independence in 1967.

Independence Day in Zambia marks the day in 1964 when Zambia gained independence from British colonial rule, becoming a sovereign nation under the leadership of its first president, Dr. Kenneth Kaunda.

Election Day in the USA is the day set by law for the general elections of public officials, including the President, Vice President, members of Congress, and many state and local offices.