The Flag of the United States, often called the "Stars and Stripes," features 13 horizontal stripes alternating red and white, representing the original 13 colonies. In the top left corner, there is a blue rectangle with 50 white stars, symbolizing the 50 states of the union. The colors red, white, and blue have specific meanings: red stands for valor, white for purity, and blue for justice. Adopted on June 14, 1777, the flag has undergone several changes as new states joined the union. The current design, with 50 stars, was established on July 4, 1960, after Hawaii became the last state to join.