Mind-Benders of Islamic History
More than thirty years on a single poem
The Persian poet Firdawsi (c. 940–1020) spent more than three decades — from about 977 to its completion in 1010 — composing the Shahnameh ("Book of Kings"), an epic of roughly 50,000 rhymed couplets and one of the longest poems ever written by a single author.
How we know
Firdawsi (Ferdowsi) c. 940–1020 CE; composed the Shahnameh c. 977–1010 (completed 8 March 1010), ~33 years; ~50,000 couplets, longest poem by a single author (Britannica; Encyclopaedia Iranica; Wikipedia).
One of many fact-checked wonders across eight traditions at The Spring of Wisdom.