Mohammad Karim Pirnia, researcher and theorist of Iranian architecture, was born.

Mohammad Karim Pirnia was born in Yazd. He later became one of the most influential researchers of traditional Iranian architecture and played an important role in formulating the concepts, terminology, and classifications related to Iranian architectural styles.

His field research on historical buildings and conversations with traditional architects and craftsmen formed the basis of part of his educational works.

"Stylistics of Iranian Architecture" and his discussions on the principles of Iranian architecture are still used in the teaching of this field.