what grade u get lol

I like the concept and the fact that it is done for the benefit of something good, but the realization is... Meh.

nice man.

Alright, let's start with the concept: the player controls a little roblox person in a wheelchair, moving through what looks like a museum showcasing the history of disability rights movements in the USA. That's good! You cite the source of your info (in-game would be better), but as-presented in your game, the text is almost unreadable. Consider the size of the text, what font you're using, and how the color will look with its background. Black Text on White Background is fine, and the font isn't some ridiculous nonsense like CurlzMT, but at the size it plays on the game it squishes and looks bad. In any project, but especially school, you want the audience to have no problems looking at the information, so they can focus on What the information is. The text also cuts off in the middle of sentences and feels incomplete. I can't tell if there's supposed to be more that I can't see because it got cut off by the camera or you picked very specific pieces of text to quote.
With a camera view keeping the character right in the center, half of everything you can see is just the floor, wasting that space with nothing but a big white void. You could either fix that camera to look further up so less of it is under the floor, or make use of the space; maybe a better, closer look at those pictures / put captions down there to explain What exactly the player is looking at (and of course, the citations).
Go back and read through your source again. How does it tell the story that it does? What does each sentence and paragraph do, tell you something new or connect to something else you know about? Are the pictures in the article related to what it's talking about? How does it tell you that they are? Think about how you can do the same in your own work, and what you should change if you want to do something different. Don't start in 1950, jump back to the 1800s, and then jump forwards again to the 1930s, when you could introduce an idea, starting from its beginning, and go through the years looking at how things have changed. I don't feel like I learned about history or A story from playing this; I feel like I read a bunch of random facts out of context while looking at pictures of people I don't know.
For a game on Newgrounds, it needs work.