Keep a history of a particular cell

I think I will need VBA code to be able to do what I want if possible. I'll try my best to explain.

I would like to be able to keep a history of dates that were entered in another cell.

Column B is Next Date for Review so this will be updated manually every time that person has a new review date, I would like column F to keep a history of all dates that have been entered into column B.

I have attached a sample s/sheet, so the next review date is today, I will be updating this with a new date but I want column F to keep a record of todays review date along with any previous dates.