More than just a day MLK can be an inspiration all year.
Here is a list of books from that can help spark inspiration for children
https://bit.ly/3nnQlms?cc=21a9949890b912274e7ffc268e5801a3 here is a link to Discovery kids with some kid friendly resources
I personally am inspired by many things including MLK and the Texas sky. Below is my own picture of TX sky and one of my favorite quotes about hope. MLK talked about hope a lot.