March 1st is a rather notable day in Bulgaria where we celebrate with a tradition of giving each other "martenitsas". Martenitsa is a small piece of adornment, made of white and red yarn and worn from March 1 until around the end of March. It is related to the Bulgarian tradition of welcoming the upcoming spring. The month of March, according to Bulgarian folklore, marks the beginning of springtime. Therefore, the first day of March is a traditional holiday associated with sending off winter and welcoming spring.
A few months back, a co-worker of mine convinced me to join my company's Spartan Race team. He didn't talk it up much: he mentioned it's a long-ish run with a few fun obstacles. You know, no big deal. Something someone who runs as much as me should complete more than easily (read, you don't really need to train for it). Ha ha ha.