I'm writing a research project and one of powerpoints im suppose to answer is
tell who any major people who have impacted this topic , here.
what does that mean?

It just means to write about people who were involved greatly. An obvious example would be like if your topic was when the slaves were freed, someone who would be considered a "major" impact would be Abraham Lincoln. Hope this helps :)

Cupidity because the principal wants to give out important yupcoming