Greek Independence Day: A Celebration of Freedom and Heritage. Each year on March 25, Greeks and philhellenes around the world celebrate Greek Independence Day, commemorating Greece’s historic declaration of independence from the Ottoman Empire in 1821. Marking the beginning of an eight-year struggle for freedom, the day is a testament to the resilience, courage, and unity of the Greek people. For the Cornell Hellenic Student Association, Greek Independence Day serves not only as a time to honor the heroes of the past but also as an opportunity to celebrate the enduring spirit of Hellenism and its contributions to culture, democracy, and human rights.