There are four historical kana spellings for the kanji that are pronounced “chō” using the on’yomi reading: “tefu, teu, chau, and chō”!

Is the reason there’s no Nobel Prize in mathematics because Nobel’s romantic rival was a mathematician?! Did he lose a fortune to a love letter?

The Japanese pronunciation of words like “crops” and “agricultural products” is difficult! The difficulty lies in both Romanization and kana notation.

Interesting seasonal words such as “kotatsu neko” (cat under a heated table), “mogaribue” (a whistle that scares away tigers), “kozokotoshi” (last year and this year), and “uchiiri no hi” (the day of the raid).

What are “flowers, birds, wind, and moon,” “snow, moon, and flowers,” “three kinds of scenery,” and “five kinds of scenery”?

“Memory decline” and “How to use notes effectively.” Anecdotes about Kiyoshi Oka, Yuji Maeda, and Kumagusu Minakata are also included.

Interesting seasonal words such as “high west wind,” “blue north wind,” “autumn thirst,” and ” end-season crop.”

Interesting seasonal words such as “Unohana kutashi” (deutzia blossoms rot), “Aobajio” (green leaves and tide), “Takenokonagashi” (bamboo shoots flowing), and “Ai no kaze” (wind of intertwining leaves).

Interesting seasonal words such as “night plum blossoms,” “warming water,” “black-leaved pampas grass,” and “long daylight hours.”

Surprisingly little-known names of things and phenomena (Part 4): Sake pods, monkeypods, earworm phenomenon, etc.

Surprisingly, many people don’t know the names of patterns and designs. Examples include Nordic patterns, houndstooth, herringbone, and paisley.

Surprisingly little-known names of things and phenomena (Part 3): Nipples, ornamental finial, globe jungle, cascade, etc.

What is “Guiguzi”? We’ll explain it in an easy-to-understand way.

The story of an unfortunate emperor (part 15). Emperor Sutoku was unhappy throughout his life and became one of Japan’s three greatest vengeful spirits.

The Unfortunate Story of an Emperor (Part 14). Emperor Sushun was assassinated by Soga no Umako, who had supported his enthronement.

The story of a regrettable emperor (part 13). Emperor Yūryaku was a tyrant and a wicked emperor who killed many people!?

The Unfortunate Story of an Emperor (Part 12). Emperor Shijo died from a fall caused by a prank he himself set up!?

The Unfortunate Story of an Emperor (Part 11). Was Emperor Buretsu a tyrant like the Roman Emperor Nero?!

The Unfortunate Story of an Emperor (Part 10). Emperor Go-Daigo’s disregard for the samurai led to the collapse of his regime!?

The Unfortunate Story of an Emperor (Part 9). Emperor Shirakawa’s relationships with women became unrestrained after he became retired emperor!?