United States Marine Corps on Instagram: "Back to Where It All Began #Marines and @usnavy Sailors from across the services participate in a parade during Navy Marine Corps 250 in Philadelphia. The event honors 250 years of Marine Corps legacy, tradition and service by giving Philadelphia residents and visitors the opportunity to connect with Marines and Sailors and learn about the Corps. Founded on November 10, 1775, the United States Marine Corps has served in every clime and place for 250 year