Apple’s educational arm of iTunes, iTunes U, has just hit a significant milestone according to the company. Apple has just announced that iTunes U has served over one billion content downloads since its launch back in 2007.

“It’s inspiring to see what educators and students of all types are doing with iTunes U,” said Eddy Cue, Apple’s senior vice president of Internet Software and Services. “With the incredible content offered on iTunes U, students can learn like never before―there are now iTunes U courses with more than 250,000 students enrolled in them, which is a phenomenal shift in the way we teach and learn.”

According to Apple, iTunes U currently caters to over 1,200 colleges and universities as well as 1,200 K-12 schools. In all, iTunes U offers more than 2,500 public courses, and “thousands” (unspecific) of smaller private ones.

iTunes U courses can be created in 30 countries, and are accessible in 155. Although Apple touts strong interest in the U.S. (a single Ohio State chemistry course enrolling 100,000 in just one year) over 60% of iTunes U app downloads come from an international audience.