The routes by which okra was taken from Ethiopia to North Africa, the eastern Mediterranean, Arabia, and India, and when, are by no means certain. Although it has been commonly cultivated in Egypt for many hundreds of years, no sign of it has ever been found in any of the ancient monuments or relics of old Egypt.
Press the Scroll Lock key Press once on the Scroll Lock key on the keyboard. It is located on the top row of your keyboard to the right of the function keys. Open the On-Screen Keyboard If your keyboard doesn't have the Scroll Lock key and you are using a Windows computer, click on the Start button.
If scrolllock is enabled on the keyboard when you press any of the arrow keys the screen will move in that direction but the selected cellwill not change. However, if scroll lock is not enabled you will beable to navigate through each of the cells using the arrow keys. (source).