The following are the best five answers for ways to conserve fuel:
-Ride a bike to work instead of drive.
-Call a store to see if they have what you want to buy.
-Share a ride with someone else.
-Take a bus instead of drive.
-Avoid maintaining your vehicle unless it's absolutely necessary.
I'm not very sure of the answer but i did find a timeline that might help you figure out who ruled from the 1200s to the mid 1300s.
https://web.cn.edu/kwheeler/timeline_1200.html
Answer:
Therefore, one way in which historians can establish the authenticity of a primary source is by comparing the source to other established sources from that time period.
Explanation: