Two volumes of the Chinese encyclopedia 'Yongle Dadian' sold for more than €8.1 million (nearly ₹69 crore), more than 1,000 times the estimated price, at an auction. "Yongle Dadian is the largest encyclopedia in the world. It originally counted 22,877 manuscript volumes, made up of approximately 370 million characters," Paris-based auction house Beaussant Lefèvre said.