Gion Matsuri, the festival of Yasaka Shrine, is the most famous festival in Japan. It takes place over the entire month of July. There are many different events, but the grand procession of floats (Yamaboko Junko) on July 17 is particularly spectacular. Very enjoyable are also the festive evenings preceding the procession (Yoiyama). From 2014, a second procession of floats was reintroduced on July 24 after a hiatus of 48 years. The second procession features fewer and smaller floats than the one on July 17. The word Yamaboko refers to the two types of floats used in the procession: the 23 yama and 10 hoko. One of the main reasons the Gion Matsuri is so impressive is the enormity of the hoko, which are up to 25 meters tall, weigh up to 12 tons, and are pulled on wheels as big as people. Both yama and hoko are elaborately decorated and represent unique themes. The procession on July 17 features 23 yama and hoko, including most of the particularly impressive hoko, while the procession on July 24 features the remaining ten yama and hoko. Another reason for the festival's impressiveness is its long and almost uninterrupted history. It dates back to 869 as a religious ceremony to appease the gods during the outbreak of an epidemic. Even today, the festival continues the practice of selecting a local boy to be a divine messenger. The child cannot set foot on the ground from the 13th until after he has been paraded through town on the 17th.