If anyone can help I’ll give 20 points plus brainiest answer

1.it was when china came divide with different dynasties , chinese adopted the nomad's culture while invaders adopted some chinese culture

2.when sui dynasty came into power

3. 350 years

4.as golden age of china civilization

5.longest suriving empires

6.sung dynasty

7.lowered taxes and was two major emperors

8.for ships to grain from the agricultral south to industrial north

9.silk worm and controlled silk products to allow them to only use it

10.gunpowder, paper money and printing

11.pottery-song dynasty

12.forming sheets of paper

13.618-907

14.made warfare all over the world very different

15.it was a instrument for naviagation

16.because easier to carry/portability

Explanation:

i am not in high school so i don’t know

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail