Substack post about Su Hui’s 4th-century 29×29 palindrome poem ‘The Star Gauge’ and its thousands of readable permutations.

Happy World Poetry Day! Here’s the most intricate (also thought to be the longest) palindrome poem in the world, The Star Gauge (《璇玑图》)—written by Chinese poet Su Hui in the 4th century for her husband—which consists of a 29 by 29 grid of characters and can be read in a myriad of ways to form over 3,000 shorter rhyming poems. 💫Mar 21, 2025at12:52 PM