In Chinese astrology Ox is after Rat and 2009 is the year of the Ox. In the very beginnings of Chinese astrology, over 3 000 years ago they named the 12 Earthly branches after animals. The 10 Heavenly stems were also named, and this helped people keep the time as well as know when the seasons were changing.
It made sense to name the 12 Earthly stems after animals as people found them simple to relate to and most Chinese people were illiterate in those times. The animals are simple to identify with and consist of mouse, ox, tiger, rabbit, dragon, snake, horse, sheep, monkey, rooster, dog and pig in that order.
According to Chinese legend the zodiac animals originated from the fact that Buddha invites all the animals to his Chinese New Year celebrations and only these 12 turned up for the party. To honor these animals he named a year after each of them and people who are born for instance in the year of the Rat like I am, are supposed to display some of the traits of these animals.
In Chinese astrology, on top of the 12 animal signs we find element signs. These are wood, fire, water, earth, and metal, each of these is represented by a color, and these are respectively, green, red, black, brown and white. The elements are each placed on top of the animal zodiac signs and are indicative of the element they fall under during that year. For instance a "fire Dragon" or a Water Ox".
The animal zodiac consists of 12 and this is divisible by two, so each sign falls under the binary Yin and Yang years, with no two animal represented by both. They are either Yin or Yang and this is determined by if the year is an odd or even year. The combination of the animals, colors and elements leads Chinese astrology to have a 60 year cycle, and our present cycle began in 1984. The cycle always begins with a wood rat and ends with a water pig.
The Ox is a very similar zodiac sign to the Rat in Chinese Astrology. It is significant in that it symbolizes a sure and steady building action so good decisions have to be made in 2009, as there are long term implications attached to your decisions. 2009 is an earth Ox year and this has destructive potential as the ruling element of Ox is water. However the past 6 years have been fraught with conflicting Chinese zodiac years and elements, out of these 6, there have been four. Apparently this is why Chinese astrologers believe the world has experienced such conflict during these years.