The rank of five-star general is an honor bestowed upon very few. In fact, you can name them on one hand: George C. Marshall, Douglas MacArthur, Dwight D. Eisenhower, Henry “Hap” Arnold, and Omar Bradley. Hap Arnold was actually general of both the Army and the Air Force, making him the only man to ever hold both titles. But that doesn’t make him the highest-ranking military official. That honor belongs to a man who has been dead for more than 200 years.

On July 4, 1976, the nation’s bicentennial, George Washington was posthumously promoted to General of the Armies of the United States. When Washington actually served in the army, he was a merely a major general—two stars. After his presidency, John Adams promoted him to lieutenant general—three stars. It stayed that way for centuries, with every four- and five-star general who came afterward outranking him.

After his World War I successes, General John J. Pershing was actually the first to be deemed General of the Armies of the United States. Because the five-star rank had yet to be created, however, Pershing remained a four-star general (his four-star insignia was gold rather than the traditional silver, though). The five-star designation was created in 1944, but the War Department specified that Pershing was still to be considered the highest-ranking official in the military.

Until 1976, that is. The exact phrasing of the law passed to promote Washington reads [PDF], “Whereas it is considered fitting and proper that no officer of the United States Army should outrank Lieutenant General George Washington on the Army list: Now, therefore, be it Resolved by the Senate and House of Representatives of the United States of America in Congress assembled, That . . . The President is authorized and requested to appoint George Washington posthumously to the grade of General of the Armies of the United States, such appointment to take effect on July 4, 1976.”

Technically, the law decreeing that no military official could outrank Washington didn’t specifically grant a six-star general designation. But some argue Washington’s ascension to such a rank means exactly that, and newspapers even reported it as such back in 1976.

Either way, of course, the law’s intent is purely symbolic (unless that whole zombie apocalypse thing really happens). But one thing’s for sure: Without Washington, the Fourth of July might just be the fourth of July, and no other military official will ever be able to top that.

A version of this story ran in 2015; it has been updated for 2023.

This article was originally published on www.mentalfloss.com as Why George Washington Is History's Only Six-Star General.