Most Popular Minor Holidays in America

Flag Day falls within National Flag Week, a time when Americans reflect on the foundations of the nation’s freedom. The flag of the United States represents freedom and has been an enduring symbol of the country’s ideals since its early days.

Patriots' Day is a state holiday in Massachusetts and Maine, where state, county, and municipal offices are closed. However, Patriots' Day is not a federal public holiday and federal offices are open.
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This is the dream that Dr. King talked about in his speech. We see history in the making. It built on the site of the old Lorraine Motel, where King was assassinated in 1968.

’Leap Day’ is February 29, which is an extra (intercalary) day added during a Leap Year, making the year 366 days long – and not 365 days, like a common (normal) year

Cinco de Mayo is annually observed on May 5, the anniversary of a victory in 1862 in the fight for independence from French forces. It is a festival of Mexican pride and heritage in the United States.

Groundhog Day is celebrated on February 2 of every year. According to folklore, if it is cloudy when a groundhog emerges from its burrow on this day, then spring will come early.

Saint Valentine's Day, also known as Valentine's Day or the Feast of Saint Valentine, is observed on February 14 each year.

Saint Patrick's Day or the Feast of Saint Patrick is a cultural and religious holiday celebrated on 17 March.
It is named after Saint Patrick (c. AD 385–461), the most commonly recognized patron saint of Ireland

According to many scholars, All Hallows' Eve is a Christianized feast initially influenced by Celtic harvest festivals, and festivals of the dead with possible pagan roots.

Columbus Day, which is annually on the second Monday of October, remembers Christopher Columbus' arrival to the Americas on October 12, 1492. This holiday is controversial because the European settlement in the Americas led to the demise of the history and culture of the indigenous peoples.