In the spirit of the Lunar New Year (or Chinese New Year as Western people often say), it should be fun to have a look at the Calendar, the underlying factor of this holiday. Here are a few trivia that I can think of.

_Though it is often called Lunar, the Calendar is in fact luni-solar in that the year and month are defined by the movement of the moon but the arrangement of the months is based on the effect of the sun (i.e. the seasons). The fact that it's quite consistent to the Gregorian Calendar (despite about 1 month difference) proves that. I heard that the Calendar also reflects the movement of the stars but I cannot confirm it.

_A Lunar year can have 13 months. Those years are called leap year and they pop up rather arbitrarily.

_People know that each year "belongs" to an animal of the Zodiac and the year is called after that animal. However, the other part of the year's name, the Heavenly Stem, is no less important. In fact, without it, the people using exclusively the Lunar Calendar cannot figure out which year they are referring to.

_The animals of the Zodiac "patronize" not only the year but also the month, day and hour. In fact, in the past, people in countries that use Lunar Calendar named the hours of the day after the Zodiac animals.

_Each animal of the Zodiac, each element of the Heavenly Stems as well as the corresponding year/month/day/hour are associated to one of the five elements: metal, wood, water, fire, earth.

More details of the Calendar can be found here. Most importantly, a happy Lunar New Year for you.