move all files of current directory into subdirectory and maintain history

Question

How can I move all the files of my current directory into a new directory and retain the history.

I have tried:

git mv . old_app

But I

Answer 1

If you are a windows user, this is one solution for you.

1. Install Turtoise Git if you have not done that
2. Select the folder you want to move
3. Right mouse button, Turtoise git, Rename