I have to write how Martin Luther King is inspirational, must include:

1. Date of birth,childhood, education, job, family.

2. How are they inspirational? What have they done in their life you admire?

2 answers

Basic facts:
https://en.wikipedia.org/wiki/Martin_Luther_King_Jr.

Go through many or all of the videos here. Take good notes, including citation notes for sources of information. Inspiration abounds among these!
https://www.biography.com/search?query=martin%20luther%20king,%20jr

If you don't know how to take notes for citing websites and/or videos, check out Electronic Sources and Other Common Sources in this website (from the list on the left side).
https://owl.english.purdue.edu/owl/resource/747/01/
Your assignment seems to ask for YOU to evaluate Dr. King's life and what seems inspirational. That asks for your opinions, your value judgements. What you find inspirational or not may differ from what others think. You must support your thoughts with facts about his life and what he did and said.