The Second Peace of Thorn (1466) split Prussia into the western Royal Prussia, a province of Poland, and the eastern part, from 1525 called the Duchy of Prussia, a fief of the Crown of Poland up to 1657.
You can check to see if your computer supports Bluetooth: 1  Look for the Bluetooth icon in the menu bar. 2  Choose System Preferences from the Apple menu, then click Bluetooth. 3  From the Apple menu, choose About this Mac, then click More Info.
Step 1. Check your computer if it is Bluetooth-enabled. To do this, go to the 'Control Panel' section and check if there is a Bluetooth icon. It will be in the shape of a B and should be colored blue. If there is such an icon, it means that your computer is Bluetooth ready and you may skip ahead to Step 3.