Ngày Quốc khánh(National Day) tại 🇵🇱 Ba Lan

Poland's National Day on May 3rd celebrates the 1791 Constitution—the world's second after the US; marked with patriotic ceremonies and the laying of flowers at national monuments, particularly the Tomb of the Unknown Soldier in Warsaw.

A country's principal commemorative holiday marking its founding, independence, or unification, observed with military parades, fireworks, official ceremonies, and expressions of national pride.