As you may have noticed, I’ve numbered these daily posts **/365. I could have jumped today, since it’s the 29th of February, but I won’t … I can «take a day off» some time later instead.
In Sweden, the leap day used to be on the 24th of February, up until 1996. I wasn’t even aware of the change until now. They moved it to the 29th. The fact that they had it on the 24th, may go back to the Roman Catholic Church … there’s LOTS to read about it in Wikipedia.