The U.S. flag, also known as the Stars and Stripes, features thirteen horizontal stripes in red and white, representing the original thirteen colonies. In the top left corner, there is a blue rectangle with fifty white stars, symbolizing the fifty states of the United States. The flag's design has evolved since its adoption in 1777, with stars added as new states joined the union. The colors of the U.S. flag hold specific meanings: red signifies valor and bravery, white represents purity and innocence, and blue stands for vigilance, perseverance, and justice. The flag is a powerful symbol of national pride and unity, often displayed during holidays and public events.