By Sam Boykin
For many years, the number of guns fired for various purposes differed from country to country. By 1730, the Royal Navy was prescribing 21 guns for certain anniversary dates. The gun salute system of the United States changed considerably over the years. In 1810, the "national salute" was defined by the War Department as equal to the number of states in the Union -- 17. This salute was fired by all US military installations at 1pm (later at noon) on Independence Day. The US Navy regulations for 1818 were the first to prescribe a specific manner for rendering gun salutes. They stated that "When the President shall visit a ship of the United States' Navy, he is to be saluted with 21 guns." (There were 21 states in the Union at that time). In 1842, the Presidential salute was formally established at 21 guns.
Today, the national salute of 21 guns is fired in honor of a national flag, the sovereign or chief of state of a foreign nation, a member of a reigning royal family, and the President, ex-President, and President-elect of the United States. It is also fired at noon of the day of the funeral of a President, ex-President, or President-elect, on Washington's Birthday, Presidents Day, and the Fourth of July. On Memorial Day, a salute of 21-minute guns is fired at noon while the flag is flown at half-mast. *