8 photos of Donald Trump in high school

Before he was a real-estate mogul, a graduate of the Wharton School of Business at the University of Pennsylvania, or the president of the United States, Donald Trump was an unruly teen whose parents sent him to military school.

Trump's parents sent him to the New York Military Academy when he was 13 because of his acting up.

His father, Fred Trump, hoped "the discipline of the school would channel his energy in a positive manner," according to The Washington Post.

Trump graduated in 1964 and went on to study at the University of Pennsylvania.

Thanks to Classmates.com, we found photos of Trump from his time at the school.

Here are some pictures of Trump that are over a half-century old: