english: All the books from Bait al-Hikma library, the most famous library in its day, were thrown in the Tigris River, and the Tigris changes color with ink.
non_english: Sve knjige iz biblioteke Bait al-Hikma, najpoznatije biblioteke u to vreme, su bile bačene u reku Tigar, i Tigar je promenio boju sa mastilom.