A tenth-century court lady accidentally invented the world's first blog with her private musings.

Art · Published 3 October 2026 Swipe more like this →

In short: Sei Shōnagon, a court lady in Heian-period Japan, wrote The Pillow Book for her own eyes only. When a guest discovered her private notes on a cushion, they were snatched away, eventually becoming a literary landmark. Her witty, genre-bending lists and observations offer a rare, intimate window into imperial court life.

Completed around 1002, The Pillow Book is a collection of anecdotes, essays, and lists written by Sei Shōnagon while serving Empress Consort Fujiwara no Teishi. Unlike the formal, male-dominated literature of the time written in Chinese, Shōnagon wrote in hiragana, a native Japanese syllabary. This allowed her to capture the nuances of her daily life with a sharp, witty, and often confrontational voice that remains remarkably readable today.

The work is famously organized into three categories: narratives of court life, personal opinions, and her signature lists. These lists, such as 'Things That Make the Heart Grow Fonder' or 'Hateful Things,' have been described as 'Borgesian' for their exhaustive scope. Because Shōnagon never intended the work for public consumption, it lacks the soul-searching typical of later diaries, focusing instead on her immediate likes, dislikes, and the aesthetic beauty of the world, a concept known as okashi.

The text’s history is complex; it circulated in handwritten manuscripts for centuries before being printed in the 17th century. Modern scholars recognize four main variants, with the Sankanbon text containing 297 sections plus 29 supplemental entries. While some believe Shōnagon wrote most of it while at court, others suggest later entries were composed from memory. Regardless of its origin, the book birthed the zuihitsu—or 'assorted writing'—genre, influencing centuries of Japanese literature and even modern media, from radio dramas to film.

Shōnagon’s work is a vital historical source for 10th-century aristocratic society, capturing the political decline of Empress Teishi’s family alongside the vibrant, poetry-filled culture of the imperial court. By writing in the 'people's language,' she and other female authors of the era shaped the trajectory of Japanese prose, proving that personal, informal observations could hold as much cultural weight as the rigid, scholarly texts of their male contemporaries.

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