Didi, a four-year-old tiger decorated with a crown roars at visitors who visited the Rusaifah Zoo during the New Years's vacations on the last day of the year, December 31, 2001. [The new year's holiday and tradition dates back to ancient Bablyon 4,000 years ago. At that time it was celebrated with the first new moon, which marked the first day of spring in late March. During the Roman era, the calender was modified to be synchronised with the sun instead of the moon, and in 46BC Julius Caesar established a permanent calendar where the new year would begin on the 1st of January.]