Lateen sail, astrolabe, magnetic compass, rudder, mapmaking skills (Latitude and Longitude), Caravel (let ships sail INTO the wind); All helped with European Exploration; Islamic scholars saved Greek and Roman texts, zero, medical advances, numbers/algebra
a primary source is a source from the time and place of the event, like a photograph that was taken of a president from 1920. If it was something like a book written in 2015 about the picture from 1920, that would be a secondary source. Hope this helps!
It’s b I did this in one of the test
They surrended after 33 hours of being constantly cannoned.
Answer:
popular sovereignty
Explanation:
let states decide wether or not to allow slavery. hope this helps ! :)