Q. Who among the following was the author of Tarikh-i-Jahan Gusha-i-Juwaini, which serves as a vital primary source for the Mongol invasions and their impact on Central Asia and India in the 13th century?
Answer: Ata-Malik Juwayni
Notes: Ata-Malik Juwayni was a Persian historian who authored Tarikh-i-Jahan Gusha-i-Juwaini in the 13th century. This work is the primary historical account documenting the rise of Genghis Khan and the Mongol Empire, providing critical insights into the Mongol invasions and their effects on Central Asia and India. The other historians wrote significant works in different historical contexts but not on this subject.