B forced graduate schools across the country to integrate.
Hope this can help.
One of the main reasons why primary sources are valuable to historians is because "<span>They give insight into the thoughts and feelings of a participant in history," since these are sources that originated during the time in question, and are "unaltered". </span>
I’m confused of what you are trying to ask
Because buffalo were such big animals they could feed a lot of people and many of their parts came to use such as their hides and horns