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.
Bluetooth is a wireless technology that allows you to connect nearby devices, even if they aren't in direct line of sight. Most newer laptops come with Bluetooth hardware already installed, but the chances are lower if your computer is older, or if you're using a desktop. See Step 1 below to learn how to determine if your computer is Bluetooth-capable, and what you can do if it isn't. Ad.