In Harmony with the Seasons : Natsu no Doyo

The eel is rich in protein and Vitamin A, all essential elements for a healthy constitution.text & coordination/ Rieko Ido, photo/ Hajime Watanabe
The eel is rich in protein and Vitamin A, all essential elements for a healthy constitution.
text & coordination/ Rieko Ido, photo/ Hajime Watanabe


The word “doyo” refers to the 18 days before the end of a season, and occurs four times a year. Within that period, the natsu no doyo no ushi no hi - which occurs before the beginning of Autumn - is a day the Japanese associate with the eating of eel, or unagi. But this tradition is actually not that old. One version of its origin is that Hiraga Gennai, a multi-talented scientist, inventor, author etc. from the Edo era in the 18th century, started this trend.
Apparently this idea for a doyo no ushi no hi came about after an enterprising owner of an unagi restaurant approached Hiraga for help to create some publicity for his shop. Hiraga, who was known to have restored a static electricity generator from the West, was interested in electricity and studying electric eels at the time. According to ancient Eastern divination, summer was thought to be related to the “fire” element which is countered by water. In the same way, water is represented by the color black. Hence it was thought that
black objects could counter the element of fire. The word “doyo” in the phrase doyo no ushi means water. So came the belief that on the day of the ushi, black objects are eaten to ward away evil. This was the basis on which eating black eel on a hot summer’s day would help to counter fatigue in the summer.

Rieko Ido
A graduate of Kokugakuin University, researcher of ancient Japanese customs and knowledge, conducting technical analysis on findings to apply them to modern lifestyles. Currently teaches at Tama Art University.


Other Articles

HOT ENTRIES

Know Your Kimono: 9 Different types of Kimono
Kimono literally means "something that is worn" - but there are many types of kimono worn on ...
Bite Into Japan's Best Burgers At Hakodate's Lucky Pierrot
  [caption id="attachment_9238" align="aligncenter" width="600"] Japan's best local buns: L...
Save on transportation and admission tickets with the Mt. Fuji Tourist Pass
From the adrenaline-packed roller coasters at Fuji Q Highland, to the pacific waters of Lake ...

CATEGORY RANKING

Know Your Kimono: 9 Different types of Kimono
Kimono literally means "something that is worn" - but there are many types of kimono worn on ...
Know Your Kimono (2): The Obi
Last time we talked about the different types of kimonos. Now we will look at how you tie them. ...
Know Your Kimono (3): Footwear
Japanese traditional footwear was invented by the Chinese and then came over to Japan. Nowadays y...