He’s already surpassed George H.W.

Bush to become the longest-living United States president, per POTUS.

Before he even stepped foot in high school, he penned a letter to the U.S.

Jimmy Carter wearing navy hat

Naval Academy in Annapolis, Maryland, to ask for a catalog of courses.

Here’s everything you better know about the naval career Carter embarked on shortly thereafter.

Carter later applied to a brand new program to make nuclear-powered submarines, and was quickly promoted to lieutenant.

Naval submarine underwater

He promptly resigned from the Navy and returned home to ruralGeorgiato get the business back on its feet.

The Navy honored Carter’s time in service by naming theSeawolf-class submarineJimmy Carter.