When did Al-Khwarizmi write the popular book which introduced
When did Al-Khwarizmi write the popular book which introduced Indian numbers and zero to the Arab world?
Answer: A.D. 820.
When did Al-Khwarizmi write the popular book which introduced
When did Al-Khwarizmi write the popular book which introduced Indian numbers and zero to the Arab world?
Answer: A.D. 820.