Today is February 29! Also known as Leap Day, this occasion happens only once every four years (and sometimes only once every eight years). For tens of thousands of years, this magical day has filled mankind with wonder, and there are a lot of superstitions and beliefs about the day. They might not all be true, but they probably are.

Let’s take a look:

It’s OK to propose to a man on Leap Day – Ladies out there, are you tired of waiting for your man to propose? Well today, and today only, you’re allowed to do some role-reversal and propose to your boyfriend! You may remember this tradition, as it was popularized a few years ago by the famously terrible movie Leap Year. If you want to take part in this tradition, you have to make sure to wear a partially visible red petticoat under your dress (really). But hurry, ladies, because after today you’re not allowed to propose to a man unless you want to look like a common whore.

It’s not OK to be born Scottish on Leap Day – In Scotland, it’s considered to be bad luck to be born on Leap Day. But take it with a grain of salt, because the Scottish are a simple people who also believe in the Loch Ness Monster and their right to self-govern.

Don’t get married in Greece during a Leap Year — In Greece, it’s considered bad luck to marry in a leap year, and even worse luck to marry on Leap Day. One in five Greek couples will actually go out of their way to avoid getting married during a leap year. So if you’re Greek (and stupid) then don’t go near the altar! Otherwise, you can probably find some pretty sweet deals on wedding packages in Greece.

Natural disasters are worse during a Leap Year – There’s an Eastern European superstition that natural disasters are more severe when they happen in a leap year. So if you feel an earthquake, make sure you get to an extra-reinforced doorway. This applies to the LSAT as well, as LSAC has a stipulation that if your February LSAT score comes back today, it’ll be a 119.

LSAT studying is deadly during a Leap Year – While all the above are just unproven superstitions, it’s been scientifically verified that if you study at all on a Leap Day, you’ll get heart cancer. So stay away from the books, and go propose to your emotionally distant boyfriend instead!