How do i find some one if i don't know where and when they was born?

Question:

How do i find some one if i don't know where and when they was born?

I have been trying to do my family tree but i dont know where or when my grandparents came from. I know there names and thats all so what do i do?

Additional Details

8 months ago
i also dont know where in the world they come from i dont know if they are englis or german or what no one knows and that makes is harder.

Best Answer - Chosen by Asker: 8 months ago
i also dont know where in the world they come from i dont know if they are englis or german or what no one knows and that makes is harder.