The 2018 Winter Olympic games are underway! The games officially started on February 8 in PyeongChang, South Korea, and will end on February 25. If you're an extremely early riser, you may have caught the live broadcast of the Opening Ceremonies this morning — but for the rest of us in the U.S., NBC will show them again tonight at 8pm Eastern time.

Prepare yourself for the next few weeks of festivities by brushing up on your Olympics history, facts about the current games, and the 15 winter sports being competed in. Lucky enough to be attending the games? Practice your Korean Olympics vocabulary.