Shrove Tuesday, also known as Pancake Day, is a Christian observance that marks the start of Lent. It's a day of confession and preparation, and celebrated just before the beginning of fasting season. The term Shrove Tuesday comes from the word "shrive," which means to confess one's sins and receive absolution for them. Pancake Day, on the other hand, refers to the traditional breakfast food that is served on this day. It's also known as Fat Tuesday, Mardi Gras, and Carnaval in different parts of the world. These terms all have their roots in the Christian tradition, but have become more secularized over time, with people celebrating them for different reasons, including indulgence, revelry, and festivities.