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.
1. Open the Device Manager. Bluetooth requires certain hardware before it will function on a computer. Most laptops come with Bluetooth, while many desktop PCs do not. The Device Manager lists all of the hardware that your computer is comprised of, and will let you see if Bluetooth hardware is installed. Accessing the Device Manager quickly is a little different for each version of Windows: