civil service exams
what did they use to write
what is a pencil
what is the definition of imperial
what is a time period ruled by an emperor
how were rockets created
what is gunpowder
did they create gunpowder on purpose
what is no
was steel more expensive than iron
what is yes
how did they see during the exams
what is a candle
who ruled during the yuan dynasty
what is mongols
when were rockets created
what is the 10th century
who created gunpowder
what is taoist alchemist
why was steel created
what is stronger tools
how long did the exams last
how long is 24-72 hours
which women ruled during the tang dynasty
who is empress wu
how are rockets mainly used in today's date
What is space travel
why was it created
what is a alchemist searching for an elixir of life
how do you make steel
what is iron
how did they go to the bathroom
what is a bucket
when did the tang dynasty begin
618
who created rockets
who is teng fu
when did they make gunpowder
what is 800 A.D
who created steel
what is regional craftsmen
how long did it take to prepare for the exams
how much is 7 years
what happened in the tang dynasty
what is more liberal women rights
what did the people in imperial china use rockets for in later cases
What is entertainment
how was gunpowder created
what is potassium nitrate, sulfur and charcoal
when was steel created
what is 1800 B.C.