Hey , Daniel , how's it going ?   Hey , Daddy , today I had really a fantastic history class .   Wow , it's so strange for you to say things like that . What had happened ?   We've learnt the story of Zheg He Sailing to West Ocean . He is a real great navigator .   Did your teacher tell you the route he took ?   Yeah , he , with his fleet , came across the Indian Ocean , and arrived at the east coast of Africa .   Great , do you still remember when he started his voyage ?   Of course , that is from 1405 to 1433 , which is in Ming dynasty .   Good , by the way , do you finish reading the book Robinson Crusoe I've bought for you ? 