Interior of Shah Jahan's Masjid Wazir Khan, Dehli Gate, Walled City of Lahore.
A 16th century mason of Mughal Empire in sub continent (IndoPak) had stronger mathematics than us :)
Still we call Mughals: "Illiterate Kings"
Because today's uniform schooling and university education system wasn't yet invented! And each child wasn't grown to work for industries..
Each child had his own customized curriculum inspired by his/her beliefs and curiosity. This education system was named: Khanqah (A place to educate Kings)
Thanks to Western education system for "Dumbing Us Down".
"Dumbing Us Down" is a book by John Taylor Gatto.
A must read to know the plot of how we became what we are as today.