Uchiwa is a traditional Japanese fan. It is often used to create a breeze to keep cool in hot weather. They are part of Japanese seasonal traditions and are often given as gifts during these times. Originally, uchiwa were made from big leaves and animal hair. The purpose was to purify and pray. Over time they have changed, and are now made from bamboo and paper. There are many kinds of pattern; during the Han Dynasty they were often decorated by famous calligraphers. During the Edo period they were made as souvenirs for shrines. During the Meiji period they were admired by foreigners and imported to other countries.