Rarely has anyone been more driven to succeed than Arnold Schwarzenegger. The Austrian came to America in the 1960s and became a champion bodybuilder. Refuting advice that his accent was too thick, his body too developed, and his name too confusing, he became the biggest box office attraction in the world thanks to films like 1982’s Conan the Barbarian and 1984’s The Terminator. That would satisfy most ambitious people, but Schwarzenegger then went a step further and became governor of California in 2003.

With the “Austrian Oak” celebrating his 73rd birthday on July 30, we’re taking a look at some of the most interesting facts of his life and career.

1. Arnold Schwarzenegger went AWOL in the Austrian military.

Arnold Schwarzenegger in The Terminator (1984).20th Century Fox Home Entertainment

Born July 30, 1947 near Graz, Austria, Arnold Schwarzenegger’s family did not lead a comfortable life. Their home had no plumbing and no telephone. Schwarzenegger’s father, Gustav, was the village police chief and also a member of the Nazi party, which his son didn’t learn until much later on in his life. His father also pitted Schwarzenegger against his older brother, Meinhard, in various athletic contests, but it wasn’t until Arnold discovered bodybuilding that he found his calling.

Schwarzenegger, who made his own weights at a local metalworking shop, trained while performing a compulsory one-year tour of duty in the Austrian Army beginning in 1965. (Thanks to the balanced meals and protein offered by the military, he also gained 25 pounds.) During his time there, Schwarzenegger fled the base without permission so that he could enter a bodybuilding competition in Germany. He won, then spent seven days in military prison for the offense.

2. Arnold Schwarzenegger learned how to drive a tank.

While serving in the Austrian military, Schwarzenegger was given instruction on how to operate a tank. The vehicle apparently held some sentimental value for him, as he later acquired it and brought it to America. In 2000, he loaned the tank to the Motts Military Museum in Ohio, then had it returned to him in 2008 with plans to offer rides to disadvantaged youth in Los Angeles as a reward for working hard in school.

3. Arnold Schwarzenegger used psychological warfare to defeat his bodybuilding opponents.

Arnold Schwarzenegger in Pumping Iron (1977).Getty Images

Schwarzenegger arrived in the United States in 1968 to pursue his bodybuilding career and enjoyed tremendous success, eventually winning seven Mr. Olympia titles. But it wasn’t solely due to his physique. In 2015, Schwarzenegger told podcast host Tim Ferris that he purposely engaged in psychological warfare to distract and shake the confidence of other competitors. He might, for example, ask a bodybuilder if they had a knee problem. “And they say, ‘Why are you asking?’” Schwarzenegger said. “I said, ‘Well, because your thighs look a little slimmer to me. I thought maybe you can’t squat or maybe there’s some problem with leg extension.’” The contestant would then feel self-conscious, and Schwarzenegger—always possessed of immense confidence—would capitalize on their insecurity, upstaging his opponent in front of the contest judges.

4. Arnold Schwarzenegger was already a millionaire before he got into acting.

Though he was successful in his bodybuilding career, Schwarzenegger wanted to have a reliable source of income beyond prize purses. He invested the money he won in competitions in California real estate, profiting immensely off the rise in property values in the 1970s. In doing so, he was able to be selective about the opportunities he chose to pursue in acting.

5. Mark Hamill told Arnold Schwarzenegger to lose his accent.

When his bodybuilding career began winding down, Schwarzenegger started looking to acting as his next challenge. Getting the title role in 1970’s Hercules in New York (where he was billed as Arnold Strong) did little to advance his ambition, as the movie was poorly-received and his heavy Austrian accent was dubbed over by an American actor. Later, after 1977’s Star Wars became a hit, Schwarzenegger asked Mark Hamill for advice. Hamill told him to lose the accent and his last name to give himself the best chance for success. Schwarzenegger obviously ignored the advice. He later said that he ultimately felt the accent was a benefit, since it made him a more distinctive commodity in Hollywood.

6. Arnold Schwarzenegger almost starred in a Hans and Franz musical.

Schwarzenegger had a sense of humor about Hans and Franz, the over-pumped Austrian bodybuilders played by Dana Carvey and Kevin Nealon on Saturday Night Live. According to writer Robert Smigel, the actor was even interested in appearing in a big-screen Hans and Franz movie musical in the early 1990s. The characters would have been depicted as heading to California to pursue stardom, with Schwarzenegger appearing as both a version of himself and as the duo’s grandmother. The film was never made.

7. Arnold Schwarzenegger’s childhood home is now a museum.

As the pride of his tiny hometown of Thal, Austria, Schwarzenegger’s childhood residence is now a museum. The announcement came in 2011, with visitors able to go inside the first-floor flat and view Schwarzenegger’s old bed, a motorcycle from The Terminator, weightlifting equipment, and a copy of the desk he used while he was governor of California.

8. Arnold Schwarzenegger will be president (in a movie).

Because he was not born in America, Schwarzenegger is ineligible to run for the office of the President of the United States, which is something the actor said he would have done if he had been able. (And no, he couldn’t become vice president, either.) But there is no such law barring him from playing one in a movie. The actor will appear as the U.S. President in Kung Fury 2, a sequel to the 2014 short film parody of 1980s action movies directed by and starring David Sandberg. A release date has not yet been announced.